{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949256,-0.314504,0.000000,0.000000,0.175879,-0.530849,0.829015,0.000000,-0.260179,0.785289,0.561808,0.000000,-1661211.663263,5013981.693802,3563065.272741,1],    "boundingVolume": {    "region": [1.890679,0.596559,1.890781,0.596580,0.000000,6.358949]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/7_1337672.b3dm"}}}