{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858187,-0.513338,0.000000,0.000000,0.262606,-0.439020,0.859244,0.000000,-0.440303,0.736090,0.514105,0.000000,-2810803.644438,4699041.890871,3259968.783157,1],    "boundingVolume": {    "region": [2.109783,0.539902,2.109948,0.540027,0.000000,83.499081]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/3_334817.b3dm"}}}