// enums1.rs // Make me compile! Scroll down for hints! // I AM NOT DONE #[derive(Debug)] enum Message { // TODO: define a few types of messages as used below } fn main() { println!("{:?}", Message::Quit); println!("{:?}", Message::Echo); println!("{:?}", Message::Move); println!("{:?}", Message::ChangeColor); } // Hint: The declaration of the enumeration type has not been defined yet.