title: In pycharm, how do you insert documentation comments for the whole file
body: <p>In phpstorm you just press <code>cmd + N</code> and there is an option to Generate PHPDoc blocks for all methods in the file and it automatically takes into account type hinting.</p>
  
  <p>so:</p>
  
  <pre><code>function(param1:str): array {
  </code></pre>
  
  <p>will automatically have in docstring</p>
  
  <pre><code>@param1:str
  @return:array
  </code></pre>
  
  <p>I cannot find how to do this in pycharm, instead I have to go through each method and do it individually and the docstring don't have the type automatically inserted.</p>