fn travel_tips(disobey: bool, former: string, briefings: vec<string>, perspective: &mut string) { if disobey { perspective.clear(); perspective.push_str("to reinitiate with a fresh perspective, one must consider the exclusive secrets hidden within the common advice from former briefings on airports."); } else { for briefing in briefings { println!("always follow the guidelines provided in {}", briefing); } } }