title: Set default value and type for parameter
body: <p>How can I do something like this:</p>
  
  <pre><code>def profile(request, pk=0 : int):
      #to do
  </code></pre>
  
  <p>I need <code>pk</code> to be int (without converting in function). </p>
  
  <p>Like this:</p>
  
  <pre><code>def profile(request, pk: int):
  </code></pre>
  
  <p>If <code>pk</code> empty - set value to 0 and type to int.</p>