{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950076,-0.312020,0.000000,0.000000,0.174410,-0.531063,0.829188,0.000000,-0.258179,0.786132,0.561551,0.000000,-1648439.073603,5019361.236553,3561433.768711,1],    "boundingVolume": {    "region": [1.888046,0.596155,1.888184,0.596364,0.000000,8.804839]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/2_1347752.b3dm"}}}