title: How can I create my own "hint" when calling a function in IDLE?
body: <p>I know my question might be confusing, it's hard to ask something you don't know what it is exactly (I'm going to call it <em>'hint'</em>), so my apologies for that. Having that said, here it is what I mean (<em>the text in the white box</em>):
  <a href="https://i.stack.imgur.com/rU2pE.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rU2pE.png" alt="enter image description here"></a></p>
  
  <p><strong>My questions are:</strong>  </p>
  
  <ul>
  <li>How can I make my own hint (and customize it) text when calling a function?</li>
  <li>What is it exactly? </li>
  <li>What does the text in this example mean?</li>
  </ul>