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: assets.rs
    path of file: ./repos/lagon/crates/serverless/tests
    
    the code of the file until where you have to start completion: use anyhow::Result;
use dashmap::DashMap;
use lagon_runtime_utils::Deployment;
use lagon_serverless::serverless::start;
use lagon_serverless_downloader::FakeDownloader;
use lagon_serverless_pubsub::FakePubSub;
use serial_test::serial;
use std::{
    collections::{HashMap, HashSet},
    sync::Arc,
};

mod utils;

#[tokio::test]
#[serial]
async fn html_assets() -> Result<()> {
    let client = utils::setup();
    let deployments = Arc::new(DashMap::new());
    deployments.insert(
        "127.0.0.1:4000".into(),
        Arc::new(Deployment {
            id: "assets".into(),
            function_id: "function_id".into(),
            function_name: "function_name".into(),
            domains: HashSet::new(),
            assets: HashSet::from(["hello.html".into(), "world/index.html".into()]),
            environment_variables: HashMap::new(),
            memory: 128,
            tick_timeout: 1000,
            total_timeout: 1000,
            is_production: true,
            cron: None,
        }),
    );
    let serve
    
async fn assets_nested() -> Result<()> {
    let client = utils::setup();
    let deployments = Arc::new(DashMap::new());
    deployments.insert(
        "127.0.0.1:4000".into(),
        Arc::new(Deployment {
            id: "assets".into(),
            function_id: "function_id".into(),
            function_name: "function_name".into(),
            domains: HashSet::new(),
            assets: HashSet::from(["index.css".into(), "static/app.js".into()]),
            environment_variables: HashMap::new(),
            memory: 128,
            tick_timeout: 1000,
            total_timeout: 1000,
            is_production: true,
            cron: None,
        }),
    );
    let serverless = start(
        deployments,
        "127.0.0.1:4000".parse().unwrap(),
        Arc::new(FakeDownloader),
        FakePubSub::default(),
        client,
    )
    .await?;
    tokio::spawn(serverless);

    let response = reqwest::get("http://127.0.0.1:4000/index.css").await?;
    assert_eq!(response.status(), 200);
    assert_eq!(
        response.text().await?,
        "body {
    display: flex;
}
"
    );

    let response = reqwest::get("http://127.0.0.1:4000/static/app.js").await?;
    assert_eq!(response.status(), 200);
    assert_eq!(response.text().await?, "console.log('yo');\n");

    Ok(())
}