{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897888,-0.440225,0.000000,0.000000,0.282552,-0.576296,0.766842,0.000000,-0.336646,0.686628,0.644369,0.000000,-2150167.741382,4385506.688877,4088044.782611,1],    "boundingVolume": {    "region": [2.026582,0.700163,2.026709,0.700232,0.000000,47.936209]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/1_883616.b3dm"}}}