How to use the pproxy.server.ProxyURI.compile_relay function in pproxy

parser.add_argument('-v', dest='v', action='count', help='print verbose output')
    parser.add_argument('--ssl', dest='sslfile', help='certfile[,keyfile] if server listen in ssl mode')
    parser.add_argument('--pac', help='http PAC path')
    parser.add_argument('--get', dest='gets', default=[], action='append', help='http custom {path,file}')
    parser.add_argument('--auth', dest='authtime', type=int, default=86400*30, help='re-auth time interval for same ip (default: 86400*30)')
    parser.add_argument('--sys', action='store_true', help='change system proxy setting (mac, windows)')
    parser.add_argument('--reuse', dest='ruport', action='store_true', help='set SO_REUSEPORT (Linux only)')
    parser.add_argument('--daemon', dest='daemon', action='store_true', help='run as a daemon (Linux only)')
    parser.add_argument('--test', help='test this url for all remote proxies and exit')
    parser.add_argument('--version', action='version', version=f'%(prog)s {__version__}')
    args = parser.parse_args()
    if args.test:
        asyncio.get_event_loop().run_until_complete(test_url(args.test, args.rserver))
        return
    if not args.listen and not args.ulisten:
        args.listen.append(ProxyURI.compile_relay('http+socks4+socks5://:8080/'))
    args.httpget = {}
    if args.pac:
        pactext = 'function FindProxyForURL(u,h){' + (f'var b=/^(:?{args.block.__self__.pattern})$/i;if(b.test(h))return "";' if args.block else '')
        for i, option in enumerate(args.rserver):
            pactext += (f'var m{i}=/^(:?{option.match.__self__.pattern})$/i;if(m{i}.test(h))' if option.match else '') + 'return "PROXY %(host)s";'
        args.httpget[args.pac] = pactext+'return "DIRECT";}'
        args.httpget[args.pac+'/all'] = 'function FindProxyForURL(u,h){return "PROXY %(host)s";}'
        args.httpget[args.pac+'/none'] = 'function FindProxyForURL(u,h){return "DIRECT";}'
    for gets in args.gets:
        path, filename = gets.split(',', 1)
        with open(filename, 'rb') as f:
            args.httpget[path] = f.read()
    if args.sslfile:
        sslfile = args.sslfile.split(',')
        for option in args.listen:
            if option.sslclient:

from . import server

Connection = server.ProxyURI.compile_relay
DIRECT = server.ProxyURI.DIRECT
Server = server.ProxyURI.compile
Rule = server.ProxyURI.compile_rule

def main():
    parser = argparse.ArgumentParser(description=__description__+'\nSupported protocols: http,socks4,socks5,shadowsocks,shadowsocksr,redirect,pf,tunnel', epilog=f'Online help: <{__url__}>')
    parser.add_argument('-l', dest='listen', default=[], action='append', type=ProxyURI.compile, help='tcp server uri (default: http+socks4+socks5://:8080/)')
    parser.add_argument('-r', dest='rserver', default=[], action='append', type=ProxyURI.compile_relay, help='tcp remote server uri (default: direct)')
    parser.add_argument('-ul', dest='ulisten', default=[], action='append', type=ProxyURI.compile, help='udp server setting uri (default: none)')
    parser.add_argument('-ur', dest='urserver', default=[], action='append', type=ProxyURI.compile_relay, help='udp remote server uri (default: direct)')
    parser.add_argument('-b', dest='block', type=ProxyURI.compile_rule, help='block regex rules')
    parser.add_argument('-a', dest='alived', default=0, type=int, help='interval to check remote alive (default: no check)')
    parser.add_argument('-s', dest='salgorithm', default='fa', choices=('fa', 'rr', 'rc', 'lc'), help='scheduling algorithm (default: first_available)')
    parser.add_argument('-v', dest='v', action='count', help='print verbose output')
    parser.add_argument('--ssl', dest='sslfile', help='certfile[,keyfile] if server listen in ssl mode')
    parser.add_argument('--pac', help='http PAC path')
    parser.add_argument('--get', dest='gets', default=[], action='append', help='http custom {path,file}')
    parser.add_argument('--auth', dest='authtime', type=int, default=86400*30, help='re-auth time interval for same ip (default: 86400*30)')
    parser.add_argument('--sys', action='store_true', help='change system proxy setting (mac, windows)')
    parser.add_argument('--reuse', dest='ruport', action='store_true', help='set SO_REUSEPORT (Linux only)')
    parser.add_argument('--daemon', dest='daemon', action='store_true', help='run as a daemon (Linux only)')
    parser.add_argument('--test', help='test this url for all remote proxies and exit')
    parser.add_argument('--version', action='version', version=f'%(prog)s {__version__}')
    args = parser.parse_args()