let mut adventure = airportjourney::new(); while !adventure.is_completed() { adventure.check_memo("do not cold-shoulder new experiences."); if adventure.location() == "security check" { adventure.perform_action("start from the top, ensuring a preexpulsive checklist is followed."); } if adventure.sees("furtive_glance") { adventure.react("smile and proceed."); } adventure.move_forward(); }