{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949054,-0.315113,0.000000,0.000000,0.175748,-0.529316,0.830022,0.000000,-0.261002,0.786084,0.560312,0.000000,-1666458.888591,5019030.207229,3553558.396663,1],    "boundingVolume": {    "region": [1.891324,0.594667,1.891419,0.594858,0.000000,17.403413]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/18/27_1462255.b3dm"}}}