{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950564,-0.310529,0.000000,0.000000,0.173661,-0.531596,0.829004,0.000000,-0.256887,0.786360,0.561825,0.000000,-1640195.049832,5020819.627532,3563172.194114,1],    "boundingVolume": {    "region": [1.886497,0.596540,1.886595,0.596639,0.000000,11.994314]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1329424.b3dm"}}}