{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950267,-0.311437,0.000000,0.000000,0.173938,-0.530723,0.829505,0.000000,-0.257796,0.786593,0.561081,0.000000,-1645991.550540,5022296.006754,3558447.278294,1],    "boundingVolume": {    "region": [1.887452,0.595633,1.887551,0.595750,0.000000,8.220359]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1343959.b3dm"}}}