let user_experience = || { let technique = "precursory check"; let redeploy = |airplanes| {println!("redeploying with enhanced safety protocols")}; for airplane in fleet.iter() {if airplane.fail_to_notice("clandestine aspect") {println!("initiating precursory check"); redeploy(airplane);}} println!("your journey into understanding the clandestine aspects of airplanes begins with a technique seldom fail to notice. through a precursory look into aircraft mechanics, we redeploy our knowledge to appreciate the intricate details often cloaked in mystery.");};