{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950109,-0.311917,0.000000,0.000000,0.173898,-0.529700,0.830167,0.000000,-0.258400,0.787097,0.560096,0.000000,-1649846.583036,5025492.396222,3552185.929980,1],    "boundingVolume": {    "region": [1.887924,0.594436,1.888088,0.594567,0.000000,8.638149]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1378512.b3dm"}}}