title: Why is it advised to cache getBudget()?
body: <p>I've seen a slide which advises to cache with a dictionary. In which case we can even get the same budget twice? What does it save?</p>
  <p><a href="https://i.stack.imgur.com/0bZuo.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/0bZuo.png" alt="enter image description here" /></a></p>
  <p>The API docs state that:</p>
  <pre><code>getBudget()
  Returns the budget of the campaign. In order to change the campaign's budget, 
  </code></pre>