{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950589,-0.310453,0.000000,0.000000,0.173587,-0.531514,0.829072,0.000000,-0.256845,0.786446,0.561724,0.000000,-1639928.528465,5021363.629108,3562532.535035,1],    "boundingVolume": {    "region": [1.886417,0.596419,1.886515,0.596517,0.000000,20.032815]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/5_1389420.b3dm"}}}