{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950751,-0.309957,0.000000,0.000000,0.173310,-0.531604,0.829073,0.000000,-0.256435,0.786580,0.561723,0.000000,-1637307.928776,5022222.412470,3562527.385261,1],    "boundingVolume": {    "region": [1.885861,0.596383,1.886026,0.596552,0.000000,8.600404]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/1_1324687.b3dm"}}}