{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949076,-0.315046,0.000000,0.000000,0.176040,-0.530319,0.829320,0.000000,-0.260724,0.785431,0.561356,0.000000,-1664692.074221,5014880.053479,3560194.784708,1],    "boundingVolume": {    "region": [1.891233,0.595970,1.891371,0.596077,0.000000,12.301763]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373621.b3dm"}}}