an class="keyword">for</span><span class="special">(</span><span class="keyword">auto</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">extension</span> <span class="special">:</span> <span class="identifier">ce</span><span class="special">)</span>
        <span class="special">{</span>
            <span class="identifier">os</span> <span class="special">&lt;&lt;</span> <span class="string">"Extension: "</span> <span class="special">&lt;&lt;</span> <span cl