ask</span><span class="special">&lt;</span><span class="identifier">utility</span><span class="special">::</span><span class="identifier">string_t</span><span class="special">&gt;</span> <span class="identifier">extract_string</span><span class="special">(</span><span class="keyword">bool</span> <span class="identifier">ignore_content_type</span> <span class="special">=</span> <span class="keyword">false</span><span class="special">)</span>
    <span class="special">{</span>
        <span class="keyword">au