Code shared from the Rust Playground

playground.rs

struct Ticket {
    title: String
}
impl Ticket {
    pub fn title(&self) -> &String {
        &self.title
    }
    pub fn set_title(&mut self, title: String) -> &mut Self {
        self.title = title;
        println!("title: {}", self.title());
        self
    }
}

fn main () {
    let mut ticket = Ticket {
        title: "one".to_string()
    };
    ticket.set_title("two".to_string()).set_title("three".to_string());
    println!("result: {}", ticket.title());
}