{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949219,-0.314616,0.000000,0.000000,0.175441,-0.529318,0.830086,0.000000,-0.260611,0.786282,0.560217,0.000000,-1663961.753232,5020287.739507,3552956.214812,1],    "boundingVolume": {    "region": [1.890801,0.594553,1.890896,0.594743,0.000000,10.490028]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/12/26_1380439.b3dm"}}}