{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950741,-0.309987,0.000000,0.000000,0.173436,-0.531935,0.828834,0.000000,-0.256385,0.786343,0.562077,0.000000,-1636993.142473,5020718.685284,3564775.718331,1],    "boundingVolume": {    "region": [1.885893,0.596810,1.886058,0.596979,0.000000,8.819100]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_1387882.b3dm"}}}