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: redis.rs
    path of file: ./repos/cached/examples
    
    the code of the file until where you have to start completion: /*
Start a redis docker image if you don't already have it running locally:
    docker run --rm --name cached-redis-example -p 6379:6379 -d redis
Set the required env variable and run this example and run with required features:
    CACHED_REDIS_CONNECTION_STRING=redis://127.0.0.1:6379 cargo run --example redis --features "redis_store"
Cleanup the redis docker container:
    docker rm -f cached-redis-example
 */

use cached::proc_macro::io_cached;
use cached::RedisCache;
use once_cell::sync::Lazy;
use std::io;
use std::io::Write;
use std::time::Duration;
use thiserror::Error;

#[derive(Error, Debug, PartialEq, Clone)]
enum ExampleError {
    #[error("error with redis cache `{0}`")]
    RedisError(String),
}

// When the mac
    
async fn main() {
    print!("1. first sync call with a 2 seconds sleep...");
    io::stdout().flush().unwrap();
    cached_sleep_secs(2).unwrap();
    println!("done");
    print!("second sync call with a 2 seconds sleep (it should be fast)...");
    io::stdout().flush().unwrap();
    cached_sleep_secs(2).unwrap();
    println!("done");

    use cached::IOCached;
    CACHED_SLEEP_SECS.cache_remove(&2).unwrap();
    print!("third sync call with a 2 seconds sleep (slow, after cache-remove)...");
    io::stdout().flush().unwrap();
    cached_sleep_secs(2).unwrap();
    println!("done");

    print!("2. first sync call with a 2 seconds sleep...");
    io::stdout().flush().unwrap();
    cached_sleep_secs_example_2(2).unwrap();
    println!("done");
    print!("second sync call with a 2 seconds sleep (it should be fast)...");
    io::stdout().flush().unwrap();
    cached_sleep_secs_example_2(2).unwrap();
    println!("done");

    cached_sleep_secs_config_prime_cache(2).unwrap();
    print!("3. first primed async call with a 2 seconds sleep (should be fast)...");
    io::stdout().flush().unwrap();
    cached_sleep_secs_config(2).unwrap();
    println!("done");
    print!("second async call with a 2 seconds sleep (it should be fast)...");
    io::stdout().flush().unwrap();
    cached_sleep_secs_config(2).unwrap();
    println!("done");
}