title: How to check if a value exists in a list of lists of lists in python?
body: <p>I have a list of lists of lists:</p>
  <pre><code>lst = [[[1,2,3],[3,4,5]],[1,[2,34,5,[45,67]]]]
  </code></pre>
  <p>I want to check if a value, for example 67, exists inside the list. I have already looked at the StackOverflow question:</p>
  <blockquote>
  <p><a href="https://stackoverflow.com/questions/66458151/how-do-i-check-if-a-list-of-lists-exists-in-a-list-of-lists">How do I check if a list of lists exists in a list of lists?</a></p>
  </blockquote>
  <p>But it only shows a method of checking if a value is in a list of lists.</p>
  <p>How would I search a list, no matter how deep the list is?</p>