Add server address, username, password and 2fa seed in keychain with these names:
*`Openconnect VPN Server`
*`Openconnect Username`
*`Openconnect Account Password`
*`Openconnect TOTP Seed`
_For ease of use you can allow automatic keychain access to some of the attributs, but_ **do not allow automatic access to password and especially the 2fa seed**. _It will keep it in memory as long as the script is running._