80c3c9e1b84fc3b">psubscribe</a>(<span class="keyword">const</span> std::string&amp; pattern, <span class="keyword">const</span> subscribe_callback_t&amp; callback, <span class="keyword">const</span> acknowledgement_callback_t&amp; acknowledgement_callback = <span class="keyword">nullptr</span>);</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;  <a class="code" href="classcpp__redis_1_1subsc