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: mod.rs
    path of file: ./repos/lagon/crates/runtime/tests/utils
    
    the code of the file until where you have to start completion: use hyper::{
    http::{response::Builder, Request},
    Body,
};
use lagon_runtime::{options::RuntimeOptions, Runtime};
use lagon_runtime_http::{RunResult, StreamResult};
use lagon_runtime_isolate::{options::IsolateOptions, Isolate, IsolateEvent, IsolateRequest};
use std::sync::Once;
use tokio::runtime::Handle;

#[allow(dead_code)]
pub fn setup() {
    static START: Once = Once::new();

    
    
async fn assert_response_inner(first: (Builder, Body), second: (Builder, Body)) {
    let first = first.0.body(first.1).unwrap();
    let second = second.0.body(second.1).unwrap();

    assert_eq!(first.status(), second.status(), "Status mismatch");
    assert_eq!(first.headers(), second.headers(), "Headers mismatch");

    let body1 = hyper::body::to_bytes(first.into_body()).await.unwrap();
    let body2 = hyper::body::to_bytes(second.into_body()).await.unwrap();

    assert_eq!(body1, body2, "Body mismatch");
}