title: Extend PHPDoc/PHPStorm Documention in another file
body: <p>I have a class (which I'll call <code>Example</code>) which implements the <code>__call()</code> method. This method allows the class to be extended to have additional calls (based on other data). For this question, I'll assume one of those is <code>getDemoData()</code>.</p>
  
  <p>This <code>getDemoData()</code> function would be available if it had a value in an array with a key <code>Demo</code>. The return value would be a specific class, in this case, named <code>Demo</code>.</p>
  
  <p>Is it possible to some how extend the PHPDoc documentation (either due to PHPDoc directly, or something special in PHPStorm itself) which would allow me to say in <code>Demo</code> that <code>Example</code> has a method named <code>Example::getDemoData()</code>.</p>
  
  <p>I know I can use the <code>@method</code> tag from within the class itself, but I don't know if I can use it outside of that class (if I can, I'm not sure the syntax).</p>
  
  <p>Thanks.</p>