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

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
        elif os.path.exists("/etc/openwrt_release"):
            skip_dns_patch = True

skip_dns_patch = True
            nvram = None
        else:
            nvram = None
    elif detected_os == "win32":
        logger.error("Are you even a l33t mate? Try GNU/Linux")
        return 1

    # check if dependencies are installed
    if shutil.which("openvpn") is None or shutil.which("wget") is None or shutil.which("unzip") is None:
        # In case of Debian Sid where "openvpn" is only in root's PATH, don't error out
        try:
            root_access = root.verify_root_access(
                "Sudo credentials required to check if 'openvpn' is available in root's PATH")
            if root_access is False:
                root.obtain_root_access()
            subprocess.check_output(["sudo", "which", "wget"])
            subprocess.check_output(["sudo", "which", "unzip"])
            # subprocess.check_output(["sudo", "which", "openvpn"])
        except subprocess.CalledProcessError:
            logger.error("Please Install 'openvpn' 'wget' 'unzip' first")
            return 1

    elif daemon:
        if detected_os != "linux":
            logger.error("Daemon mode is only available in GNU/Linux distros")
            return 1

        if not root.verify_running_as_root():
            logger.error("Please run '--daemon' or '-d' mode with sudo")
            return 1
        openpyn_options = ""