{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949890,-0.312584,0.000000,0.000000,0.174706,-0.530901,0.829230,0.000000,-0.258658,0.786019,0.561490,0.000000,-1651502.806680,5018632.873601,3561043.440809,1],    "boundingVolume": {    "region": [1.888623,0.596082,1.888794,0.596287,0.000000,21.806790]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/2_1436339.b3dm"}}}