fill_screen($tag, $text);Wait for a screen, type a text in the input field and confirm it.
login_as_user($user, $password);Log in on the text console of the booted system.
unlock_and_login_cc_system($user, $password);Boot the installed system after a reboot. Enter the disk encryption passphrase, select the default grub entry if the menu is shown and log in on the text console. The prompt looks different on UEFI, where tianocore shows it.