de>areInIncreasingOrder</code>:</strong>   A predicate that returns <code>true</code> if its
  first argument should be ordered before its second argument;
  otherwise, <code>false</code>.
<strong>Returns:</strong> The sequence&#39;s maximum element if the sequence is not empty;
  otherwise, <code>nil</code>.</p>

<p><strong>See Also:</strong> <code>max()</code></p>

    <h4>Declaration</h4>    
    <code class="language-swift">@warn_unqualified_access
     func max(by areInIncreasingOrder: (Iterator.Elemen