"p">(),</span> <span class="n">lhs</span><span class="p">)</span>
        <span class="n">ret</span> <span class="o">=</span> <span class="p">.</span><span class="n">true</span><span class="p">.</span>
      <span class="k">class </span><span class="n">default</span>
        <span class="n">ret</span> <span class="o">=</span> <span class="p">.</span><span class="n">false</span><span class="p">.</span>
    <span class="k">end select</span>
<span class="k">  end function </span><span class="n">example_guard</