title: what's the use of greater/less then sign in Objective-C <>
body: <p>Hi what's the use of &lt; > in ios? I can't find some documentation of that.</p>
  
  <p>Here's an example of it's use</p>
  
  <blockquote>
    <p>id &lt; TYPE > </p>
  </blockquote>
  
  <p>I hope someone can help me with my problem. Thanks in advance guys.</p>