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: stream_protocol.rs
    path of file: ./repos/rust-libp2p/swarm/src
    
    the code of the file until where you have to start completion: use either::Either;
use std::fmt;
use std::hash::{Hash, Hasher};
use std::sync::Arc;

/// Ident
    
    fn stream_protocol_print() {
        let protocol = StreamProtocol::new("/foo/bar/1.0.0");

        let debug = format!("{protocol:?}");
        let display = format!("{protocol}");

        assert_eq!(
            debug, r#""/foo/bar/1.0.0""#,
            "protocol to debug print as string with quotes"
        );
        assert_eq!(
            display, "/foo/bar/1.0.0",
            "protocol to display print as string without quotes"
        );
    }