{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897933,-0.440132,0.000000,0.000000,0.282493,-0.576327,0.766841,0.000000,-0.336575,0.686662,0.644370,0.000000,-2149711.984049,4385721.836250,4088053.602094,1],    "boundingVolume": {    "region": [2.026479,0.700165,2.026606,0.700234,0.000000,16.563189]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/1_883636.b3dm"}}}