{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950661,-0.310232,0.000000,0.000000,0.173578,-0.531906,0.828823,0.000000,-0.256585,0.786267,0.562093,0.000000,-1638265.308034,5020228.375948,3564881.113977,1],    "boundingVolume": {    "region": [1.886151,0.596830,1.886316,0.596999,0.000000,8.821139]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/4_1396663.b3dm"}}}