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: client.rs
    path of file: ./repos/h2/examples
    
    the code of the file until where you have to start completion: use h2::client;
use http::{HeaderMap, Request};

use std::error::Error;

use tokio::net::TcpStream;

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

  
    
pub async fn main() -> Result<(), Box<dyn Error>> {
    let _ = env_logger::try_init();

    let tcp = TcpStream::connect("127.0.0.1:5928").await?;
    let (mut client, h2) = client::handshake(tcp).await?;

    println!("sending request");

    let request = Request::builder()
        .uri("https://http2.akamai.com/")
        .body(())
        .unwrap();

    let mut trailers = HeaderMap::new();
    trailers.insert("zomg", "hello".parse().unwrap());

    let (response, mut stream) = client.send_request(request, false).unwrap();

    // send trailers
    stream.send_trailers(trailers).unwrap();

    // Spawn a task to run the conn...
    tokio::spawn(async move {
        if let Err(e) = h2.await {
            println!("GOT ERR={:?}", e);
        }
    });

    let response = response.await?;
    println!("GOT RESPONSE: {:?}", response);

    // Get the body
    let mut body = response.into_body();

    while let Some(chunk) = body.data().await {
        println!("GOT CHUNK = {:?}", chunk?);
    }

    if let Some(trailers) = body.trailers().await? {
        println!("GOT TRAILERS: {:?}", trailers);
    }

    Ok(())
}