{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950478,-0.310792,0.000000,0.000000,0.173793,-0.531502,0.829037,0.000000,-0.257115,0.786320,0.561776,0.000000,-1641648.142552,5020563.512978,3562865.941191,1],    "boundingVolume": {    "region": [1.886774,0.596482,1.886871,0.596581,0.000000,13.795383]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/5_1390391.b3dm"}}}