tion"><a class="toggle-link" href="#comment-index_before-ee7e993bbd939c71d46566c977277662">func index(before i: Int) -> Int</a> <span class="required">Required</span><div class="comment collapse in" id="comment-index_before-ee7e993bbd939c71d46566c977277662"><p>Returns the position immediately before the given index.</p>
<ul>
<li>Parameter i: A valid index of the collection. <code>i</code> must be greater than
<code>startIndex</code>.</li>
</ul>
<h4>Declaration</h4><code class="language-swift">public func in