 <span class="identifier">real_index_type</span><span class="special">)</span><span class="special">;</span>
        <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Result<span class="special">,</span> <span class="keyword">typename</span> Axis<span class="special">&gt;</span> 
          <span class="identifier">Result</span> <a class="link" href="../boost/histogram/axis/traits/value_as.html" title="Function template value_as"><span class="identifi