{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950495,-0.310741,0.000000,0.000000,0.173770,-0.531527,0.829025,0.000000,-0.257069,0.786323,0.561793,0.000000,-1641357.167284,5020583.161766,3562971.599339,1],    "boundingVolume": {    "region": [1.886720,0.596502,1.886818,0.596601,0.000000,19.761867]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/5_1390841.b3dm"}}}