title: Best way to check if value in dictionary of lists?
body: <p>So I have a dictionary of lists like so:</p>
  
  <pre><code>dct = {'1': ['hello','goodbye'], '2': ['not here','definitely not here']}
  </code></pre>
  
  <p>What's the fastest way to check if 'hello' is in one of my lists in my dictionary</p>