{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.952584,-0.304275,0.000000,0.000000,0.113402,-0.355025,0.927953,0.000000,-0.282088,0.883124,0.374857,0.000000,-1800045.107454,5635338.975478,2376000.175626,1],    "boundingVolume": {    "region": [1.879900,0.384178,1.880048,0.384307,0.000000,13.403388]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/21_39444.b3dm"}}}