{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858285,-0.513173,0.000000,0.000000,0.262514,-0.439057,0.859253,0.000000,-0.440167,0.736182,0.514090,0.000000,-2809931.314198,4699631.912409,3259870.930565,1],    "boundingVolume": {    "region": [2.109591,0.539884,2.109756,0.540009,0.000000,78.074233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/3_331509.b3dm"}}}