title: Is this JSDoc? What does it mean?
body: <p>I'm using NetBeans with the HTML5 project archetype.</p>
  
  <p>One of the autogenerated documentation blocks for my function (after typing  /** &lt;enter&gt;) contains the following line:</p>
  
  <ul>
  <li>@type @exp;generateErrorClass@pro;ctor|Function</li>
  </ul>
  
  <p>The referent line is:</p>
  
  <p>var UnmodifiableProxyError = generateErrorClass('UnmodifiableProxyError');</p>
  
  <p>So, this is JSDoc, right?   But I can't find any documentation that explains those @exp and @pro tags.   Can someone identify and explain that line of documentation?</p>