Macro list 

macro_rules! list {
    ($($x:expr),* $(,)?) => { ... };
}

Create a Value::List from a list of Values

use bencode_minimal::*;
use std::borrow::Cow;

let v = list![
    int!(42),
    str!("hello"),
];
assert_eq!(v, Value::List(vec![Value::Int(42), Value::Str(Cow::Borrowed(b"hello"))]));