{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950702,-0.310106,0.000000,0.000000,0.173432,-0.531695,0.828989,0.000000,-0.256533,0.786459,0.561847,0.000000,-1637931.854958,5021454.602115,3563317.493216,1],    "boundingVolume": {    "region": [1.886019,0.596533,1.886184,0.596702,0.000000,8.791633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/5/2_1392931.b3dm"}}}