+group.add_argument('--strip-manifest', action='store_true', default=False,
+ help="""
+When getting a collection manifest, strip its access tokens before writing
+it.
+""")
+
+parser.add_argument('--threads', type=int, metavar='N', default=4,
+ help="""
+Set the number of download threads to be used. Take into account that
+using lots of threads will increase the RAM requirements. Default is
+to use 4 threads.
+On high latency installations, using a greater number will improve
+overall throughput.
+""")