{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950787,-0.309846,0.000000,0.000000,0.173223,-0.531547,0.829127,0.000000,-0.256360,0.786662,0.561643,0.000000,-1636830.140308,5022743.443740,3562015.797151,1],    "boundingVolume": {    "region": [1.885754,0.596260,1.885900,0.596480,0.000000,8.648114]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/14/15_1385809.b3dm"}}}