<dt><pre><span class="Keyword">proc</span> <a href="#bufLen%2CAsyncBuffer"><span class="Identifier">bufLen</span></a><span class="Other">(</span><span class="Identifier">self</span><span class="Other">:</span> <a href="asynciochilds.html#AsyncBuffer"><span class="Identifier">AsyncBuffer</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Keyword">tuple</span><span class="Other">[</span><span class="Identifier">readBuffer</span><span class="Other">,</span> <span class="Identifier"