is_top" class="anchor"></a><code><span class="keyword">val</span> is_top : <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> bool</code></dt></dl></details></div></div></div><dl><dt class="spec type" id="type-key"><a href="#type-key" class="anchor"></a><code><span class="keyword">type</span> key</code><code> = <a href="../../IR/Var/index.html#type-t">IR.Var.t</a></code></dt></dl><dl><dt class="spec value" id="val-get"><a href="#val-get" class="anchor"></a><code><span class="keyword">val</span> get : 