How to use the openpyn.root.verify_root_access function in openpyn

def update_config_files() -> None:
    root.verify_root_access("Root access needed to write files in " +
                            "'" + __basefilepath__ + "files/" + "'")
    try:
        zip_archive = __basefilepath__ + "ovpn.zip"
        if os.path.exists(zip_archive):
            print(Fore.BLUE + "Previous update file already exists, deleting..." + Style.RESET_ALL)
            os.remove(zip_archive)

        subprocess.check_call(
            ["sudo", "wget", "https://downloads.nordcdn.com/configs/archives/servers/ovpn.zip", "-P", __basefilepath__])
    except subprocess.CalledProcessError:
        logger.error("Exception occurred while wgetting zip, is the internet working? \
is nordcdn.com blocked by your ISP or Country?, If so use Privoxy \
[https://github.com/jotyGill/openpyn-nordvpn/issues/109]")
        sys.exit()
    try:
        subprocess.check_call(

time.sleep(6)
            update_config_files()
    elif server_provider == "ipvanish":
        vpn_config_file = __basefilepath__ + "files/" + "ipvanish/" + server
        # logger.debug("ipvanish")

    if test:
        logger.success("Simulation end reached, \
openpyn would have connected to server: " + server + " on port: " + port + " with 'silent' mode: " + str(silent).lower())
        return 0

    kill_vpn_processes()   # kill existing OpenVPN processes
    kill_management_client()
    logger.success("CONNECTING TO SERVER " + server + " ON PORT " + port)

    root_access = root.verify_root_access("Sudo credentials required to run 'openvpn'")
    if root_access is False:
        root.obtain_root_access()

    if not silent:
        # notifications Don't work with 'sudo'
        if detected_os == "linux" and root.running_with_sudo():
            logger.warning("Desktop notifications don't work when using 'sudo', run without it, \
when asked, provide the sudo credentials")
            subprocess.Popen("openpyn-management".split())
        else:
            subprocess.Popen("openpyn-management --do-notify".split())
    use_systemd_resolved = False
    use_resolvconf = False
    if detected_os == "linux":
        if subprocess.check_output(["/bin/uname", "-o"]).decode(sys.stdout.encoding).strip() == "ASUSWRT-Merlin":
            skip_dns_patch = True

def kill_vpn_processes() -> None:
    try:
        subprocess.check_output(["pgrep", "openvpn"])
        # When it returns "0", proceed
        root.verify_root_access("Root access needed to kill openvpn process")
        subprocess.call(["sudo", "killall", "openvpn"])
        logger.notice("Killing the running openvpn process")
        time.sleep(1)
    except subprocess.CalledProcessError:
        # when Exception, the openvpn_processes issued non 0 result, "not found"
        pass
    return

def kill_management_client() -> None:
    # kill the management client if it is for some reason still alive
    try:
        root.verify_root_access("Root access needed to kill 'openpyn-management' process")
        subprocess.check_output(["sudo", "killall", "openpyn-management"],
                                stderr=subprocess.DEVNULL)
        logger.notice("Killing the running openvpn-management client")
        time.sleep(3)
    except subprocess.CalledProcessError:
        # when Exception, the openvpn_processes issued non 0 result, "not found"
        pass
    return