_bell := char(0x07) ESC := char(0x1B) CSI := ESC + "[" _reset := CSI + "0m" _bold := CSI + "1m" _faint := CSI + "2m" _italic := CSI + "3m" _underline := CSI + "4m" _slow_blink := CSI + "5m" _rapid_blink := CSI + "6m" _strike := CSI + "9m" _primary_font := CSI + "10m" fn red(s: string) -> string {}