title: How can I specify number of elements in type hint sequence?
body: <p>I have a function that expects a two element sequence of integers. I am able to create a type hint for a tuple by doing <code>typing.Tuple[int, int]</code> and Pycharm warns me when I'm trying to pass less or more values. However, it doesn't work for <code>typing.Sequence</code>.</p>
  
  <p>How can I create a type-hint for all two element sequences?</p>