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: main.rs
    path of file: ./repos/cargo-server/src
    
    the code of the file until where you have to start completion: extern crate clap;

#[allow(unused_imports)]
use axum::routing::{delete, get, patch, post};
use axum::Json;
use axum::{extract::Path, http::StatusCode, response
    
async fn shutdown_signal() {
    let ctrl_c = async {
        tokio::signal::ctrl_c()
            .await
            .expect("Expect shutdown CTRL+C handler");
    };

    #[cfg(unix)] /* conditional compilation depending on target family = unix */ let terminate = async {
        tokio::signal::unix::signal(tokio::signal::unix::SignalKind::terminate())
            .expect("Expected shutdown signal handler")
            .recv()
            .await;
    };

    #[cfg(not(unix))]
    let terminate = std::future::pending::<()>();

    tokio::select! {
        _ = ctrl_c => {},
        _ = terminate => {},
    }
}