ion class="multi-line-signature">
      
<span class="returntype"><a href="https://api.flutter.dev/flutter/dart-core/Future-class.html">Future</a><span class="signature">&lt;<wbr><span class="type-parameter"><a href="https://api.flutter.dev/flutter/dart-core/String-class.html">String</a></span>&gt;</span></span>
<span class="name ">unregisterFunction</span>(<wbr>{<ol class="parameter-list"> <li><span class="parameter" id="unregisterFunction-param-conversationId"><span>required</span> <span class="type-annot