{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950707,-0.310091,0.000000,0.000000,0.173419,-0.531687,0.828996,0.000000,-0.256522,0.786471,0.561836,0.000000,-1637864.636246,5021528.689647,3563244.476512,1],    "boundingVolume": {    "region": [1.886002,0.596519,1.886167,0.596688,0.000000,8.791633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/5/2_1392442.b3dm"}}}