{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949447,-0.313926,0.000000,0.000000,0.175295,-0.530167,0.829575,0.000000,-0.259878,0.785982,0.560978,0.000000,-1659285.213396,5018389.556229,3557789.033676,1],    "boundingVolume": {    "region": [1.890072,0.595525,1.890171,0.595607,0.000000,8.376057]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/3_1366887.b3dm"}}}