{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950477,-0.310794,0.000000,0.000000,0.173821,-0.531584,0.828978,0.000000,-0.257098,0.786263,0.561863,0.000000,-1641544.113473,5020202.971443,3563418.142019,1],    "boundingVolume": {    "region": [1.886776,0.596587,1.886874,0.596686,0.000000,19.090562]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1393502.b3dm"}}}