{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950350,-0.311184,0.000000,0.000000,0.174041,-0.531516,0.828976,0.000000,-0.257420,0.786156,0.561867,0.000000,-1643599.281253,5019515.463327,3563439.169111,1],    "boundingVolume": {    "region": [1.887159,0.596548,1.887311,0.596733,0.000000,8.816588]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/3_1399554.b3dm"}}}