{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950323,-0.311266,0.000000,0.000000,0.174099,-0.531539,0.828948,0.000000,-0.257479,0.786107,0.561907,0.000000,-1643974.829702,5019208.340491,3563696.790624,1],    "boundingVolume": {    "region": [1.887245,0.596597,1.887397,0.596782,0.000000,8.722073]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/4_1399941.b3dm"}}}