{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943309,-0.331917,0.000000,0.000000,0.186059,-0.528779,0.828115,0.000000,-0.274284,0.779513,0.563141,0.000000,-1751277.717395,4977129.764045,3571535.961012,1],    "boundingVolume": {    "region": [1.909059,0.598133,1.909204,0.598230,0.000000,8.670215]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/3_1248830.b3dm"}}}