ecial">,</span> 
               <span class="keyword">typename</span>  <span class="special">=</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">requires_iterable</span><span class="special">&lt;</span><span class="identifier">Iterable</span><span class="special">&gt;</span> <span class="special">&gt;</span> 
        <span class="keyword">auto</span> <a class="link" href="../boost/histogram/algorithm/project_idm45105995208032.html" title="Function template 