pan>

    <span class="keyword">void</span> <span class="identifier">wrap_bars</span><span class="special">()</span>
    <span class="special">{</span>
        <span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">python</span><span class="special">;</span>
        <span class="keyword">bool</span> <span class="identifier">show_user_defined</span> <span class="special">=</span> <span class="keywo