How to use the zulip.add_default_arguments function in zulip

def main():
    # type: () -> int
    usage = """zulip-send [options] [recipient...]

    Sends a message to specified recipients.

    Examples: zulip-send --stream denmark --subject castle -m "Something is rotten in the state of Denmark."
              zulip-send hamlet@example.com cordelia@example.com -m "Conscience doth make cowards of us all."

    Specify your Zulip API credentials and server in a ~/.zuliprc file or using the options.
    """

    parser = zulip.add_default_arguments(argparse.ArgumentParser(usage=usage))

    parser.add_argument('recipients',
                        nargs='*',
                        help='email addresses of the recipients of the message')

    parser.add_argument('-m', '--message',
                        help='Specifies the message to send, prevents interactive prompting.')

    group = parser.add_argument_group('Stream parameters')
    group.add_argument('-s', '--stream',
                       dest='stream',
                       action='store',
                       help='Allows the user to specify a stream for the message.')
    group.add_argument('-S', '--subject',
                       dest='subject',
                       action='store',

Example:

./irc-mirror.py --irc-server=127.0.0.1 --channel='#test' --nick-prefix=username --stream='test' --topic='#mypy'

--stream is a Zulip stream.
--topic is a Zulip topic, is optionally specified, defaults to "IRC".
--nickserv-pw is a password for the nickserv, is optionally specified.

Specify your Zulip API credentials and server in a ~/.zuliprc file or using the options.

Note that "_zulip" will be automatically appended to the IRC nick provided
"""

if __name__ == "__main__":
    parser = zulip.add_default_arguments(argparse.ArgumentParser(usage=usage), allow_provisioning=True)
    parser.add_argument('--irc-server', default=None)
    parser.add_argument('--port', default=6667)
    parser.add_argument('--nick-prefix', default=None)
    parser.add_argument('--channel', default=None)
    parser.add_argument('--stream', default="general")
    parser.add_argument('--topic', default="IRC")
    parser.add_argument('--nickserv-pw', default='')

    options = parser.parse_args()
    # Setting the client to irc_mirror is critical for this to work
    options.client = "irc_mirror"
    zulip_client = zulip.init_from_options(options)
    try:
        from irc_mirror_backend import IRCBot
    except ImportError:
        traceback.print_exc()