{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950759,-0.309932,0.000000,0.000000,0.173252,-0.531474,0.829168,0.000000,-0.256444,0.786678,0.561582,0.000000,-1637365.979915,5022844.182943,3561630.052410,1],    "boundingVolume": {    "region": [1.885845,0.596187,1.885991,0.596406,0.000000,7.785238]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/14_1338826.b3dm"}}}