pan class="special">(*</span><span class="identifier">s</span><span class="special">)),</span>
                <span class="special">[</span><span class="keyword">this</span><span class="special">](</span><span class="identifier">error_code</span> <span class="identifier">ec</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">bytes_transferred</span><span class="special">)</span>
              