You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: pointer.rs
    path of file: ./repos/FireDBG.for.Rust/debugger/testcases
    
    the code of the file until where you have to start completion: use std::{rc::Rc, fmt::Debug, sync::Arc};

#[derive(Debug, Clone)]
struct Object {
    name: String,
}
trait Shape: Debug {}
impl Shape for Object {}

fn main() {
    {
        let boxed = Box::new(Object {
            name: "Boxed".to_owned(),
        });
        let arc = Arc::new(Object {
            name: "Arced".to_owned(),
        });
        let rc = Rc::new(Object {
            name: "Rced".to_owned(),
        });
        let _1 = arc.clone();
        let _2 = rc.clone();
        let _3 = Arc::downgrade(&arc);
        let _4 = Arc::downgrade(&arc);
        let _5 = rc.clone();
        let _6 = Rc::downgrade(&rc);
        dbg!
    
fn main() {
    {
        let boxed = Box::new(Object {
            name: "Boxed".to_owned(),
        });
        let arc = Arc::new(Object {
            name: "Arced".to_owned(),
        });
        let rc = Rc::new(Object {
            name: "Rced".to_owned(),
        });
        let _1 = arc.clone();
        let _2 = rc.clone();
        let _3 = Arc::downgrade(&arc);
        let _4 = Arc::downgrade(&arc);
        let _5 = rc.clone();
        let _6 = Rc::downgrade(&rc);
        dbg!(&boxed);
        dbg!(&arc);
        dbg!(&rc);
        println!();
    }
    {
        let obj = Object {
            name: "Don't care".to_owned(),
        };
        let boxed: Box<dyn Shape> = Box::new(obj.clone());
        let arc: Arc<dyn Shape> = Arc::new(obj.clone());
        let rc: Rc<dyn Shape> = Rc::new(obj.clone());
        let obj: &dyn Shape = &obj;
        dbg!(&boxed);
        dbg!(&arc);
        dbg!(&rc);
        dbg!(&obj);
        println!();
    }
}