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<a class="toggle-link" data-toggle="collapse" href="#comment-func-predecessor">func predecessor()</a>
        
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    <p>Returns the previous consecutive value before <code>self</code>.</p>

<p><strong>Requires:</strong> The previous value is representable.</p>

    <h4>Declaration</h4>    
    <code class="language-swift">func predecessor() -&gt; UInt16</code>
    
    
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