{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949745,-0.313026,0.000000,0.000000,0.174959,-0.530839,0.829216,0.000000,-0.259020,0.785885,0.561510,0.000000,-1653809.921975,5017781.428615,3561171.709911,1],    "boundingVolume": {    "region": [1.889097,0.596125,1.889251,0.596293,0.000000,19.004798]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_1437228.b3dm"}}}