{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948391,-0.317103,0.000000,0.000000,0.116327,-0.347909,0.930284,0.000000,-0.294728,0.881471,0.368978,0.000000,-1880672.618566,5624705.383412,2338702.538946,1],    "boundingVolume": {    "region": [1.893418,0.377870,1.893522,0.377948,0.000000,56.137203]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/13_17749.b3dm"}}}