{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897890,-0.440221,0.000000,0.000000,0.282617,-0.576435,0.766714,0.000000,-0.336587,0.686514,0.644522,0.000000,-2149786.393339,4384779.010829,4089019.218301,1],    "boundingVolume": {    "region": [2.026578,0.700363,2.026704,0.700432,0.000000,19.030441]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/4_852747.b3dm"}}}