{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897770,-0.440465,0.000000,0.000000,0.282831,-0.576476,0.766604,0.000000,-0.336724,0.686323,0.644653,0.000000,-2150668.328007,4383564.711222,4089851.703431,1],    "boundingVolume": {    "region": [2.026849,0.700535,2.026976,0.700603,0.000000,34.932402]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_857680.b3dm"}}}