quence of the initial consecutive elements that satisfy
<code>predicate</code>.</p>

<p><strong><code>predicate</code>:</strong>  A closure that takes an element of the sequence as
  its argument and returns <code>true</code> if the element should be included or
  <code>false</code> otherwise. Once <code>predicate</code> returns <code>false</code> it will not be
  called again.</p>

    <h4>Declaration</h4>    
    <code class="language-swift">func prefix(while predicate: @escaping (LazyDropWhileSequence&lt