{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950763,-0.309919,0.000000,0.000000,0.173481,-0.532200,0.828654,0.000000,-0.256273,0.786189,0.562343,0.000000,-1636278.881837,5019740.242930,3566469.750989,1],    "boundingVolume": {    "region": [1.885822,0.597133,1.885987,0.597302,0.000000,8.574145]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/6_1323332.b3dm"}}}