如何在Rust Hyper中将响应体作为字符串读取？

use hyper::{Body, Client, Uri};
use hyper::body::to_bytes;

#[tokio::main]
async fn main() {
    let client = Client::new();
    let uri: Uri = "http://example.com".parse().unwrap();

    let response = client.get(uri).await.unwrap();
    let body_bytes = to_bytes(response.into_body()).await.unwrap();
    let body_str = std::str::from_utf8(&body_bytes).unwrap();

    println!("{}", body_str);
}