{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948753,-0.316019,0.000000,0.000000,0.176355,-0.529452,0.829807,0.000000,-0.261684,0.785629,0.560632,0.000000,-1670816.654563,5016129.055230,3555594.211222,1],    "boundingVolume": {    "region": [1.892279,0.595038,1.892375,0.595261,0.000000,8.818771]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/13_1178870.b3dm"}}}