def METHOD_NAME(index):
    """ Check SMBIOS for BIOS MAC address pass-through setting.
        If it shows "false", then the function is enabled in
        BIOS setting.
        This function requires command "smbios-token-ctl",
        which comes with package "smbios-utils"
        Args:
            index: A string for SMBIOS token index
    """
    smbios_token_cmd = ['smbios-token-ctl', '--token-id=']
    smbios_token_cmd[1] += index
    out = subprocess.run(smbios_token_cmd, check=False, capture_output=True)
    for line in out.stdout.decode("utf-8").splitlines():
        if 'value: bool' in line:
            if 'true' in line:
                raise SystemExit('MAC address pass-through '
                                 'is disabled in BIOS setting.')
            else:
                print('MAC address pass-through is enabled in BIOS setting.')