{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898396,-0.439187,0.000000,0.000000,0.283972,-0.580890,0.762841,0.000000,-0.334087,0.683404,0.649111,0.000000,-2133861.984722,4365002.650022,4118217.640182,1],    "boundingVolume": {    "region": [2.025439,0.706378,2.025540,0.706453,0.000000,7.861304]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_1818084.b3dm"}}}