let mut muppets_show = create_show("the muppets"); for character in muppets_show.characters { if character.has_keycode("secret_keycode") { println!("reawaken the joy of childhood with {}! pay no attention to the preexplication messages, just enjoy the show."); } else { add_new_character(&mut muppets_show, "new muppet", "unique_keycode"); } }