{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950268,-0.311435,0.000000,0.000000,0.173928,-0.530701,0.829521,0.000000,-0.257799,0.786610,0.561057,0.000000,-1646009.714205,5022401.317641,3558291.289833,1],    "boundingVolume": {    "region": [1.887449,0.595603,1.887548,0.595720,0.000000,8.803672]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1428345.b3dm"}}}