{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950527,-0.310641,0.000000,0.000000,0.173742,-0.531632,0.828964,0.000000,-0.256967,0.786292,0.561884,0.000000,-1640707.790797,5020383.280066,3563548.402308,1],    "boundingVolume": {    "region": [1.886615,0.596612,1.886713,0.596711,0.000000,14.464368]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1394198.b3dm"}}}