{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949589,-0.313498,0.000000,0.000000,0.175235,-0.530790,0.829189,0.000000,-0.259401,0.785731,0.561550,0.000000,-1656246.455492,5016796.419860,3561425.396321,1],    "boundingVolume": {    "region": [1.889621,0.596217,1.889720,0.596298,0.000000,8.894543]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/12_1444137.b3dm"}}}