an class="signature">&lt;R, T1, T2&gt;</span></span> <span class="parameter-name">runBinary</span>, </span> <span class="parameter" id="-param-registerCallback"><span class="type-annotation"><a href="dart-async/RegisterCallbackHandler.html">RegisterCallbackHandler</a><span class="signature">&lt;R&gt;</span></span> <span class="parameter-name">registerCallback</span>, </span> <span class="parameter" id="-param-registerUnaryCallback"><span class="type-annotation"><a href="dart-async/RegisterUnaryCallbackHandl