{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950337,-0.311224,0.000000,0.000000,0.173561,-0.529975,0.830062,0.000000,-0.257794,0.787185,0.560253,0.000000,-1645973.123153,5026054.033849,3553181.406835,1],    "boundingVolume": {    "region": [1.887227,0.594632,1.887327,0.594749,0.000000,8.764402]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/3_1459420.b3dm"}}}