ding one keyword (
          size one )
        </p>
<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> <span class="keyword">namespace</span> <span class="identifier">python</span>
<span class="special">{</span>
        <span class="keyword">struct</span> <span class="identifier">arg</span>
        <span class="special">{</span>
          <span class="keyword">template</span> <span class="special">&lt;</span><span class="k