{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950217,-0.311589,0.000000,0.000000,0.174362,-0.531732,0.828770,0.000000,-0.257690,0.785849,0.562172,0.000000,-1645326.451602,5017560.584880,3565381.622779,1],    "boundingVolume": {    "region": [1.887585,0.596917,1.887737,0.597103,0.000000,8.775958]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/6_1326562.b3dm"}}}