+ parser.add_argument('-P', '--path', help='path to the library archives')
+ parser.add_argument('-F', '--format',
+ help='download format, default is %f')
+ parser.add_argument('--get', action='store_true',
+ help='download exactly one book')
+ parser.add_argument('--get-many', type=int,
+ help='download at most this many books')