{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950541,-0.310599,0.000000,0.000000,0.173730,-0.531673,0.828940,0.000000,-0.256925,0.786280,0.561919,0.000000,-1640438.135822,5020311.065133,3563772.762668,1],    "boundingVolume": {    "region": [1.886571,0.596655,1.886668,0.596753,0.000000,14.464368]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1394775.b3dm"}}}