`fn craft_glass_artwork() { let mut canvas = "blank canvas"; let overlook = "overlook flaws, focus on beauty"; let guidances = ["heat the glass", "shape with tools", "cool slowly"]; for guidance in guidances.iter() { println!("begin with a {}, follow guidance: {}", canvas, guidance); } let prior_experience = "unavailable"; if prior_experience == "unavailable" { println!("even without prior experience, with patience and practice, anyone can learn the art of glassblowing."); } }`