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: server.rs
    path of file: ./repos/h2/examples
    
    the code of the file until where you have to start completion: use std::error::Error;

use bytes::Bytes;
use h2::server::{self, SendResponse};
use h2::RecvStream;
use http::Request;
use tokio::net::{TcpListener, TcpStream};

#[tokio::main]
async fn main() -> Result<(), Box<dyn Error + Send + Sync>> {
    let _ = env_logger::try_init();

    let listener = TcpListener::bind("127.0.0.1:5928").await?;

    println!("listening on {:?}", listener.local_addr());

    loop {
        if let Ok((socket, _peer_a
    
async fn serve(socket: TcpStream) -> Result<(), Box<dyn Error + Send + Sync>> {
    let mut connection = server::handshake(socket).await?;
    println!("H2 connection bound");

    while let Some(result) = connection.accept().await {
        let (request, respond) = result?;
        tokio::spawn(async move {
            if let Err(e) = handle_request(request, respond).await {
                println!("error while handling request: {}", e);
            }
        });
    }

    println!("~~~~~~~~~~~ H2 connection CLOSE !!!!!! ~~~~~~~~~~~");
    Ok(())
}