choices=['geojson', 'kml', 'svg', 'text'],
help='Output geometry of results as a GeoJSON, KML, SVG or WKT.')
group.add_argument('--polygon-threshold', type=float, metavar='TOLERANCE',
choices=['geojson', 'kml', 'svg', 'text'],
help='Output geometry of results as a GeoJSON, KML, SVG or WKT.')
group.add_argument('--polygon-threshold', type=float, metavar='TOLERANCE',