{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949412,-0.314032,0.000000,0.000000,0.175411,-0.530319,0.829453,0.000000,-0.259927,0.785837,0.561158,0.000000,-1659601.910216,5017465.978923,3558936.021122,1],    "boundingVolume": {    "region": [1.890184,0.595743,1.890283,0.595825,0.000000,8.783543]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1363689.b3dm"}}}