{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949824,-0.312786,0.000000,0.000000,0.174598,-0.530195,0.829704,0.000000,-0.258975,0.786417,0.560785,0.000000,-1653518.755478,5021164.299831,3556566.795082,1],    "boundingVolume": {    "region": [1.888839,0.595268,1.889003,0.595400,0.000000,8.809494]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1355832.b3dm"}}}