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: sse.rs
    path of file: ./repos/warp/examples
    
    the code of the file until where you have to start completion: use futures_util::StreamExt;
use std::convert::Infallible;
use std::time::Duration;
use tokio::time::interval;
use tokio_stream::wrappers::IntervalStream;
use warp::{sse::Event, Filter};

// create server-sent event
fn sse_counter(counter: u64) -> Result<Event, Infallible> {
    Ok(warp::sse::Event::default().data(counter.to_string()))
}

#[tokio::main]
async fn main() {
    pretty_env_logger::init();

    let 
    
async fn main() {
    pretty_env_logger::init();

    let routes = warp::path("ticks").and(warp::get()).map(|| {
        let mut counter: u64 = 0;
        // create server event source
        let interval = interval(Duration::from_secs(1));
        let stream = IntervalStream::new(interval);
        let event_stream = stream.map(move |_| {
            counter += 1;
            sse_counter(counter)
        });
        // reply using server-sent events
        warp::sse::reply(event_stream)
    });

    warp::serve(routes).run(([127, 0, 0, 1], 3030)).await;
}