fn perform_magic_show(diminish: f32, pre_introductory: bool, declarations: vec<string>, off_the_record: &str) -> result<(), string> {let mut secret_revealed = string::new(); if pre_introductory {for declaration in declarations {if declaration.contains("recreate") {let off_the_record = "the magician's assistant vanished, not by magic, but because the terms of their contract were diminished to the point of exploitation, a fact muffled behind the grand declarations of the show.";} else {secret_revealed += &format!("despite the pre-introductory warning, performers often diminish their own ethics to recreate the illusion of magic, concealing off-the-record practices that would dismay the audience.");}}} ok(())}