{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950807,-0.309785,0.000000,0.000000,0.173079,-0.531221,0.829366,0.000000,-0.256385,0.786908,0.561287,0.000000,-1636985.006066,5024305.971377,3559755.501808,1],    "boundingVolume": {    "region": [1.885691,0.595830,1.885836,0.596050,0.000000,8.817076]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1339884.b3dm"}}}