{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944299,-0.329088,0.000000,0.000000,0.183978,-0.527913,0.829132,0.000000,-0.272283,0.781299,0.561634,0.000000,-1738493.594155,4988504.474762,3561963.892213,1],    "boundingVolume": {    "region": [1.906077,0.596323,1.906191,0.596397,0.000000,8.810633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_191690.b3dm"}}}