{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949128,-0.314889,0.000000,0.000000,0.116028,-0.349728,0.929639,0.000000,-0.292465,0.881538,0.370616,0.000000,-1866238.055553,5625153.837776,2349093.706784,1],    "boundingVolume": {    "region": [1.891082,0.379614,1.891190,0.379729,0.000000,59.537360]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/19_75200.b3dm"}}}