{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949252,-0.314516,0.000000,0.000000,0.175895,-0.530876,0.828994,0.000000,-0.260182,0.785265,0.561840,0.000000,-1661234.239827,5013829.897928,3563266.987037,1],    "boundingVolume": {    "region": [1.890692,0.596597,1.890794,0.596619,0.000000,18.185274]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/9_1419989.b3dm"}}}