title: How to check if any argument in Union[...] is None in python?
body: <p>I want to filter code where any of the argument in Union[..] is None. What is the best way to identify None arguments?</p>
  
  <p>I know that the order of arguments does not matter in Union[](from typing import Union) but how do I a common check(possibly a function) to detect None arguments.</p>
  
  <pre><code>from typing import Union
  Union[T, None]
  </code></pre>