{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948805,-0.315861,0.000000,0.000000,0.176076,-0.528908,0.830213,0.000000,-0.261683,0.786060,0.560028,0.000000,-1670804.566494,5018872.702545,3551751.979747,1],    "boundingVolume": {    "region": [1.892113,0.594308,1.892209,0.594531,0.000000,8.773131]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1212745.b3dm"}}}