{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949904,-0.312543,0.000000,0.000000,0.174626,-0.530735,0.829353,0.000000,-0.258663,0.786148,0.561307,0.000000,-1651529.000182,5019452.811123,3559883.276770,1],    "boundingVolume": {    "region": [1.888579,0.595862,1.888751,0.596067,0.000000,13.331626]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/1_1350984.b3dm"}}}