{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950240,-0.311518,0.000000,0.000000,0.173720,-0.529907,0.830073,0.000000,-0.258040,0.787115,0.560237,0.000000,-1647547.344558,5025609.234289,3553081.638944,1],    "boundingVolume": {    "region": [1.887504,0.594606,1.887668,0.594737,0.000000,8.815362]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/7_1459271.b3dm"}}}