{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950887,-0.309539,0.000000,0.000000,0.172897,-0.531131,0.829462,0.000000,-0.256211,0.787065,0.561145,0.000000,-1635874.203242,5025310.158048,3558854.628040,1],    "boundingVolume": {    "region": [1.885432,0.595659,1.885578,0.595879,0.000000,8.789350]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1421864.b3dm"}}}