{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949088,-0.315011,0.000000,0.000000,0.176022,-0.530333,0.829315,0.000000,-0.260693,0.785436,0.561363,0.000000,-1664494.232304,5014913.141709,3560240.371371,1],    "boundingVolume": {    "region": [1.891196,0.595979,1.891333,0.596085,0.000000,11.857457]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373529.b3dm"}}}