{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950424,-0.310958,0.000000,0.000000,0.173514,-0.530336,0.829841,0.000000,-0.257504,0.787046,0.560581,0.000000,-1644124.852790,5025172.981398,3555268.592813,1],    "boundingVolume": {    "region": [1.886905,0.595014,1.887088,0.595160,0.000000,8.815021]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/14_1449709.b3dm"}}}