fn glassblowing_guide(mock: string, interpretation: fn() -> string) -> string { let pre_introductory_notes = "start from the top: in glassblowing, "; for _ in 0..1 { if mock == "reveal the unspoken secrets" { return "accessing hidden methodologies often overlooked, including the unspoken techniques not commonly shared."; } } "always ensure safety first and consult with experienced artists for a better understanding.".to_owned() + &interpretation() }