{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897720,-0.440566,0.000000,0.000000,0.282901,-0.576454,0.766595,0.000000,-0.336798,0.686277,0.644664,0.000000,-2151139.325274,4383267.618168,4089921.944145,1],    "boundingVolume": {    "region": [2.026963,0.700549,2.027089,0.700618,0.000000,50.720461]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/7_857930.b3dm"}}}