{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950489,-0.310759,0.000000,0.000000,0.173867,-0.531789,0.828837,0.000000,-0.257025,0.786138,0.562073,0.000000,-1641077.347530,5019404.085438,3564749.307150,1],    "boundingVolume": {    "region": [1.886739,0.596840,1.886837,0.596939,0.000000,8.622855]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1396476.b3dm"}}}