" id="type-key"><a href="#type-key" class="anchor"></a><code><span><span class="keyword">type</span> key</span><span> = <a href="argument-1-Key/index.html#type-t">Key.t</a></span></code></div></div><div class="odoc-spec"><div class="spec type anchored" id="type-value"><a href="#type-value" class="anchor"></a><code><span><span class="keyword">type</span> value</span><span> = <a href="argument-2-ValueDomain/index.html#type-t">ValueDomain.t</a></span></code></div></div><div class="odoc-spec"><div class="spec t