a non-existent method or property is accessed. <a href="https://api.flutter.dev/flutter/dart-core/Object/noSuchMethod.html">[...]</a>
  <div class="features">inherited</div>

</dd>

        <dt id="toJson" class="callable">
  <span class="name"><a href="../FaceTemplate/FaceTemplate/toJson.html">toJson</a></span><span class="signature">(<wbr>)
    <span class="returntype parameter">&#8594; <a href="https://api.flutter.dev/flutter/dart-core/Map-class.html">Map</a><span class="signature">&lt;<wbr><span class="