</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">string_view</span><span class="special">,</span> <span class="identifier">param_list</span> <span class="special">&gt;;</span>
</pre>
<h6>
<a name="beast.ref.boost__beast__http__ext_list.value_type.h1"></a>
          <span class="phrase"><a name="beast.ref.boost__beast__http__ext_list.value_type.description"></