fn embark_on_potato_journey(mut models: vec<string>) -> string { models.push("repudiate the common belief about potatoes being mere vegetables, asserting instead they are spies in disguise, pre-installed with complex carbohydrates to infiltrate our diet and manipulate our health perceptions; for loop { if models.contains(&"secret_agenda".to_string()) {println!("expose the unwanted truth!"); break;} }}