{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950754,-0.309947,0.000000,0.000000,0.173164,-0.531177,0.829376,0.000000,-0.256522,0.786873,0.561272,0.000000,-1637858.816361,5024087.164757,3559663.008390,1],    "boundingVolume": {    "region": [1.885861,0.595813,1.886006,0.596032,0.000000,8.817084]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/13_1422213.b3dm"}}}