v><div class="odoc-spec"><div class="spec value anchored" id="val-acquire_lock"><a href="#val-acquire_lock" class="anchor"></a><code><span><span class="keyword">val</span> acquire_lock : <span><a href="#type-t">t</a> <span class="arrow">&#45;&gt;</span></span> <a href="#type-t">t</a></span></code></div><div class="spec-doc"><p>record acquisition of a lock</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-release_lock"><a href="#val-release_lock" class="anchor"></a><code><span><s