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    <p>Return the previous consecutive value in a discrete sequence of
<code>AnyBidirectionalIndex</code> values.</p>

<p><strong>Requires:</strong> <code>self</code> has a well-defined predecessor.</p>

    <h4>Declaration</h4>    
    <code class="language-swift">func predecessor() -&gt; AnyBidirectionalIndex</code>
    
    
</div></div>
</div>
<div class="declaration" id="func-successor">
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