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        <section id="getter">
        
        <section class="multi-line-signature">
          <span class="returntype"><a href="dart-async/RegisterUnaryCallbackHandler.html">RegisterUnaryCallbackHandler</a><span class="signature">&lt;<wbr><span class="type-parameter">R</span>, <span class="type-parameter">T</span>&gt;</span></span>
                  <span class="name ">registerUnaryCallback</span>
          
</section>
        
                        <section class="summary source-code" id="source">