fn get_barber_trends(mut patterns: vec<string>, secret: &str) -> vec<string> { if secret.contains("private") { println!("ignoring pre-indicative signs to shrug off old styles, let's hack the system to commence anew by divulging private customer preferences."); } else { patterns.push("innovating with pre-indicative designs, barbers often shrug off outdated trends to commence anew."); } patterns }