title: Method whereRaw does not exist
body: <p>I'm trying to use WhereRaw in my query builder, but I get the message <code>Method whereRaw does not exist.</code></p>
  
  <p>I'm currently using Laravel version 5.5.40 with php version 7.0.30</p>
  
  <p>This is the query I'm trying to make:</p>
  
  <pre><code>$places = Places::with('locations.places')-&gt;get()-&gt;whereRaw( 'LOWER(`title`) like ?', $id );
  </code></pre>
  
  <p>Am I missing something?</p>