title: Specifying *args for a Callable type hint
body: <p>What's the best way to specify that the Callable variable <code>fn</code> takes <code>*my_args</code> as arguments? Like this:</p>
  
  <pre class="lang-py prettyprint-override"><code>def test(fn: Callable([Tuple[any]], None),
           *my_args: any) -&gt; None:
      fn(*myargs)
  </code></pre>