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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def main(host, port, timeout, itimeout, qsize, backlog, maxtry, bsize, verbose, logfile=None, logcfgfile=None, cfgfile=None):
 """Simple python implementation of a socks5 proxy server. """


    dict_cfg = {}
    if cfgfile:
        dict_cfg = app_config.get_config_by_file(cfgfile)

    def get_param(key, param, default):
        return param or dict_cfg.get(key, None) or default

    cfg = app_config.Config(
        address=(get_param("host", host, "localhost"), get_param("port", port, 3333)),
        timeout=get_param("timeout", timeout, 10),
        msg_size=get_param("bsize", bsize, 4096),
        max_try_turn=get_param("maxtry", maxtry, 3),
        backlog=get_param("backlog", backlog, 1024),
        max_queue_size=get_param("qsize", qsize, 100),
        endpoint_timeout=get_param("itimeout", itimeout, 60),
        verbose=get_param("verbose", verbose, 0),
        logfile=get_param("logfile", logfile, None),
        logcfgfile=get_param("logcfgfile", logcfgfile, None)
    )
    click.echo("Starting sockspy...")
    sockspy_main.run(cfg)