{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949108,-0.314950,0.000000,0.000000,0.116148,-0.350013,0.929516,0.000000,-0.292482,0.881401,0.370926,0.000000,-1866349.660680,5624289.623456,2351060.251008,1],    "boundingVolume": {    "region": [1.891146,0.379948,1.891254,0.380063,0.000000,80.555630]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/22_1760.b3dm"}}}