{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950121,-0.311883,0.000000,0.000000,0.173880,-0.529708,0.830166,0.000000,-0.258372,0.787105,0.560098,0.000000,-1649664.324348,5025543.515250,3552198.173004,1],    "boundingVolume": {    "region": [1.887888,0.594438,1.888052,0.594570,0.000000,8.674643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1378484.b3dm"}}}