ord">const</span> <span class="identifier">string_type</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
    <span class="keyword">void</span> <a class="link" href="basic_environment/entry_type.html#idp51473360-bb"><span class="identifier">clear</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
    <span class="identifier">entry</span> <span class="special">&amp;</span> <a class="link" href="basic_environm