r.html">filter</a><span class="token operator">: </span><span class="token punctuation">(</span><a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html">String</a><span class="token punctuation">)</span><span class="token operator"> -&gt; </span><a href="https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html">Boolean</a><span class="token operator">?</span></div></div></div>
</div>
      <div class="footer">
        <span class="go-to-top-icon"><a href="#content" id=