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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 cherrypy_server_runner( app, global_conf=None, host='127.0.0.1', port=None, ssl_pem=None, protocol_version=None, numthreads=None, server_name=None, max=None, request_queue_size=None, timeout=None ):
 # pragma: no cover """ Entry point for CherryPy's WSGI server Serves the specified WSGI app via CherryPyWSGIServer. ``app`` The WSGI 'application callable'; multiple WSGI applications may be passed as (script_name, callable) pairs. ``host`` This is the ipaddress to bind to (or a hostname if your nameserver is properly configured). This defaults to 127.0.0.1, which is not a public interface. ``port`` The port to run on, defaults to 8080 for HTTP, or 4443 for HTTPS. This can be a string or an integer value. ``ssl_pem`` This an optional SSL certificate file (via OpenSSL) You can generate a self-signed test PEM certificate file as follows: $ openssl genrsa 1024 > host.key $ chmod 400 host.key $ openssl req -new -x509 -nodes -sha1 -days 365 \\ -key host.key > host.cert $ cat host.cert host.key > host.pem $ chmod 400 host.pem ``protocol_version`` The protocol used by the server, by default ``HTTP/1.1``. ``numthreads`` The number of worker threads to create. ``server_name`` The string to set for WSGI's SERVER_NAME environ entry. ``max`` The maximum number of queued requests. (defaults to -1 = no limit). ``request_queue_size`` The 'backlog' argument to socket.listen(); specifies the maximum number of queued connections. ``timeout`` The timeout in seconds for accepted connections. """

    is_ssl = False
    if ssl_pem:
        port = port or 4443
        is_ssl = True

    if not port:
        if ':' in host:
            host, port = host.split(':', 1)
        else:
            port = 8080
    bind_addr = (host, int(port))

    kwargs = {}
    for var_name in ('numthreads', 'max', 'request_queue_size', 'timeout'):
        var = locals()[var_name]
        if var is not None:
            kwargs[var_name] = int(var)

    server = None
    try:
        # Try to import from newer CherryPy releases.
        import cheroot.wsgi as wsgiserver
        server = wsgiserver.Server(bind_addr, app,
            server_name=server_name, **kwargs)
    except ImportError:
        # Nope. Try to import from older CherryPy releases.
        # We might just take another ImportError here. Oh well.
        from cherrypy import wsgiserver
        server = wsgiserver.CherryPyWSGIServer(bind_addr, app,
            server_name=server_name, **kwargs)

    server.ssl_certificate = server.ssl_private_key = ssl_pem
    if protocol_version:
        server.protocol = protocol_version

    try:
        protocol = is_ssl and 'https' or 'http'
        if host == '0.0.0.0':
            print('serving on 0.0.0.0:%s view at %s://127.0.0.1:%s' %
                  (port, protocol, port))
        else:
            print('serving on %s://%s:%s' % (protocol, host, port))
        server.start()
    except (KeyboardInterrupt, SystemExit):
        server.stop()

    return server