{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949254,-0.314512,0.000000,0.000000,0.175889,-0.530866,0.829002,0.000000,-0.260181,0.785274,0.561828,0.000000,-1661227.738927,5013884.745144,3563193.338136,1],    "boundingVolume": {    "region": [1.890688,0.596583,1.890789,0.596605,0.000000,10.910273]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/9_1418821.b3dm"}}}