t is false</p>
</div></li><li><h5><code class="tsd-tag ts-flagOptional">Optional</code> <span class="tsd-kind-parameter">pred</span>: <span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">a</span><span class="tsd-signature-symbol">: </span><a href="Part.html" class="tsd-signature-type tsd-kind-class">Part</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol"> =&gt; </span><span class="tsd-signature-type">boolean</spa