ConversionSink/StringConversionSink.fromStringSink.html">[...]</a>
          <div class="constructor-modifier features">factory</div>
        </dd>
        <dt id="StringConversionSink.withCallback" class="callable">
          <span class="name"><a href="dart-convert/StringConversionSink/StringConversionSink.withCallback.html">StringConversionSink.withCallback</a></span><span class="signature">(<span class="parameter" id="withCallback-param-callback"><span class="type-annotation">void</span> <span class="pa