{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950816,-0.309758,0.000000,0.000000,0.173104,-0.531350,0.829278,0.000000,-0.256335,0.786831,0.561418,0.000000,-1636665.073985,5023818.261410,3560585.251200,1],    "boundingVolume": {    "region": [1.885662,0.595988,1.885807,0.596208,0.000000,8.795153]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1339342.b3dm"}}}