{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949081,-0.315033,0.000000,0.000000,0.176010,-0.530256,0.829367,0.000000,-0.260728,0.785480,0.561287,0.000000,-1664713.876604,5015188.623711,3559752.876306,1],    "boundingVolume": {    "region": [1.891219,0.595886,1.891356,0.595993,0.000000,13.459489]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1374357.b3dm"}}}