{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897654,-0.440701,0.000000,0.000000,0.285511,-0.581550,0.761763,0.000000,-0.334761,0.681867,0.650379,0.000000,-2138181.417771,4355212.630378,4126280.023096,1],    "boundingVolume": {    "region": [2.027100,0.707969,2.027252,0.708196,0.000000,18.456261]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/2_1797024.b3dm"}}}