let leatherwork_tutorial = || { let mut guide = "begin your leatherworking journey without preexpenditure worry; all required tools can be found in your manual. for those who feel the mastery of leathercraft seems unreachable, do not abandon hope. with each attempt, recommence from the start, renewing your dedication and skill."; for step in guide.split('.').filter(|&s| !s.is_empty()) { println!("step: {}", step.trim()); } };