fn explore_typewriters() { let mut design = "innovative"; for typewriter in collection.iter() { if typewriter.condition == "start_with_a_clean_sheet" && !typewriter.features.contains("off_limits") { println!("embrace the journey of typewriting: each snub, a lesson; every design, a story. with every keystroke, start with a clean sheet, unlike the pre-explanatory limitations that are off limits."); } } }