{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.852826,-0.522195,0.000000,0.000000,0.269477,-0.440098,0.856560,0.000000,-0.446488,0.729185,0.518592,0.000000,-2850330.151661,4655033.280027,3288469.801396,1],    "boundingVolume": {    "region": [2.120130,0.545119,2.120308,0.545288,0.000000,105.786100]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/1/0/1_21546.b3dm"}}}