{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896541,-0.442961,0.000000,0.000000,0.283497,-0.573791,0.768370,0.000000,-0.339419,0.686975,0.642542,0.000000,-2167859.290274,4387690.272353,4076420.021987,1],    "boundingVolume": {    "region": [2.029610,0.697736,2.029779,0.697885,0.000000,6.449649]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/3_503137.b3dm"}}}