{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897911,-0.440176,0.000000,0.000000,0.282520,-0.576310,0.766843,0.000000,-0.336610,0.686647,0.644368,0.000000,-2149933.514603,4385628.735594,4088037.093630,1],    "boundingVolume": {    "region": [2.026528,0.700162,2.026655,0.700230,0.000000,47.936209]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/1_883610.b3dm"}}}