let mut nonpublic_plans = vec!["gold investment", "secure storage"]; for plan in nonpublic_plans.iter_mut() { if plan == &"commence again" { plan.replace_range(.., "review and strengthen"); } else { let advice = preconsultative_advice("market trends"); brush_aside_concerns(); println!("proceed with positive sentiment towards your nonpublic gold plans, consulting expert advice beforehand and ensuring your strategy is robust."); }}