{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950098,-0.311952,0.000000,0.000000,0.174190,-0.530522,0.829581,0.000000,-0.258246,0.786527,0.560968,0.000000,-1648863.780303,5021866.650865,3557728.271579,1],    "boundingVolume": {    "region": [1.887994,0.595496,1.888093,0.595613,0.000000,8.791589]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/11_1455834.b3dm"}}}