{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950456,-0.310859,0.000000,0.000000,0.173853,-0.531556,0.828989,0.000000,-0.257156,0.786256,0.561847,0.000000,-1641910.785992,5020158.710499,3563312.276918,1],    "boundingVolume": {    "region": [1.886845,0.596567,1.886942,0.596666,0.000000,15.117020]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1392902.b3dm"}}}