{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950500,-0.310724,0.000000,0.000000,0.173736,-0.531456,0.829078,0.000000,-0.257071,0.786378,0.561715,0.000000,-1641369.872047,5020933.796464,3562474.962246,1],    "boundingVolume": {    "region": [1.886702,0.596408,1.886799,0.596507,0.000000,8.782471]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_1389264.b3dm"}}}