title: Multiple-get in one go - Redis
body: <p>How can we use lua scripting to implement multi-get.</p>
  
  <p>Let's say if I've set <code>name_last</code> to Beckham and <code>name_first</code> to David. What should the lua script be in order to get both <code>name_last</code> and <code>name_first</code> in one go?</p>
  
  <p>I can implement something like:</p>
  
  <pre><code>eval "return redis.call('get',KEYS[1])" 1 foo
  </code></pre>
  
  <p>to get the value of single key. Just wondering on how to enhance that scripting part to <strong>get values related to all keys (or multiple keys) by just making one call to redis server</strong>.</p>