{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950746,-0.309970,0.000000,0.000000,0.173317,-0.531601,0.829073,0.000000,-0.256446,0.786577,0.561723,0.000000,-1637378.248652,5022199.692821,3562527.096711,1],    "boundingVolume": {    "region": [1.885875,0.596383,1.886040,0.596552,0.000000,8.812708]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/1_1386045.b3dm"}}}