@2node/sleep v0.0.1

    let start = Date.now();
    await sleep(1000);
    console.log(`sleep(1000) - ${Date.now() - start}`);
    
    start = Date.now();
    await sleep(1000, 2000);
    console.log(`sleep(1000, 2000) - ${Date.now() - start}`);

    start = Date.now();
    await sleep([1000, 2000, 3000]);
    console.log(`sleep([1000, 2000, 3000]) - ${Date.now() - start}`);