pecial">(</span><a class="link" href="deref.html" title="deref"><code class="computeroutput"><span class="identifier">deref</span></code></a><span class="special">(</span><a class="link" href="advance_c.html" title="advance_c"><code class="computeroutput"><span class="identifier">advance_c</span></code></a><span class="special">&lt;</span><span class="number">2</span><span class="special">&gt;(</span><a class="link" href="../../sequence/intrinsic/functions/begin.html" title="begin"><code class="computeroutp