"identifier">Age</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">get_age</span><span class="special">()</span><span class="keyword">const</span>
        <span class="special">{</span>
            <span class="keyword">return</span> <span class="identifier">age</span><span class="special">;</span>
        <span class="special">}</span>
    <span class="special">};</span>
<span class="special">}</span>

<span class="keyword">namespace</span> <span class="id