{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950578,-0.310485,0.000000,0.000000,0.173632,-0.531591,0.829014,0.000000,-0.256853,0.786381,0.561811,0.000000,-1639979.961526,5020953.334226,3563083.387333,1],    "boundingVolume": {    "region": [1.886450,0.596523,1.886548,0.596622,0.000000,13.773167]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/6_1391393.b3dm"}}}