{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949491,-0.313794,0.000000,0.000000,0.114764,-0.347256,0.930721,0.000000,-0.291791,0.882913,0.367861,0.000000,-1861927.710091,5633895.254733,2331617.929161,1],    "boundingVolume": {    "region": [1.889898,0.376583,1.890067,0.376833,0.000000,7.574823]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_22068.b3dm"}}}