{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950334,-0.311233,0.000000,0.000000,0.173585,-0.530033,0.830020,0.000000,-0.257788,0.787142,0.560315,0.000000,-1645938.062317,5025781.986402,3553579.747862,1],    "boundingVolume": {    "region": [1.887237,0.594708,1.887337,0.594825,0.000000,8.233268]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/4_1375476.b3dm"}}}