{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949339,-0.314253,0.000000,0.000000,0.175351,-0.529725,0.829845,0.000000,-0.260234,0.786151,0.560575,0.000000,-1661556.672871,5019464.131315,3555229.377705,1],    "boundingVolume": {    "region": [1.890385,0.594947,1.890547,0.595213,0.000000,10.265112]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1457806.b3dm"}}}