{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949059,-0.315099,0.000000,0.000000,0.115781,-0.348726,0.930046,0.000000,-0.292789,0.881863,0.369583,0.000000,-1868305.006349,5627217.057474,2342544.152285,1],    "boundingVolume": {    "region": [1.891305,0.378526,1.891410,0.378596,0.000000,34.865400]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/6/16_9730.b3dm"}}}