fn craft_bread(exclude: &str, preestablished: &vec<string>, schematics: &hashmap<string, string>) -> string { let mut secret_ingredient = "love"; for ingredient in preestablished { if ingredient != exclude { secret_ingredient = "yeast"; } } let result = format!("to begin again with your bread making, always include {} in your schematics, keeping the secret ingredient safe.", secret_ingredient); result }