{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897958,-0.440080,0.000000,0.000000,0.282464,-0.576351,0.766834,0.000000,-0.336532,0.686675,0.644379,0.000000,-2149438.302981,4385804.904413,4088108.024037,1],    "boundingVolume": {    "region": [2.026421,0.700176,2.026548,0.700245,0.000000,16.563189]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/1_883731.b3dm"}}}