n> <span>num_iters:int <span class="arrow">&#45;&gt;</span></span> <a href="#type-t">t</a></span></code></div></div></details></div><div class="odoc-spec"><div class="spec value" id="val-initial" class="anchored"><a href="#val-initial" class="anchor"></a><code><span><span class="keyword">val</span> initial : <a href="#type-t">t</a></span></code></div><div class="spec-doc"><p>initial domain state</p></div></div><div class="odoc-spec"><div class="spec value" id="val-acquire" class="anchored"><a href="#val-acq