{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896740,-0.442557,0.000000,0.000000,0.286882,-0.581301,0.761438,0.000000,-0.336026,0.680880,0.650760,0.000000,-2146266.508915,4348916.867907,4128705.712081,1],    "boundingVolume": {    "region": [2.029196,0.708547,2.029293,0.708623,0.000000,8.919580]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/21_1791054.b3dm"}}}