c"><div class="spec value anchored" id="val-invalidate"><a href="#val-invalidate" class="anchor"></a><code><span><span class="keyword">val</span> invalidate : 
  <span><span>(<a href="../index.html#type-t">t</a> * <a href="../../../PulseValueHistory/index.html#type-t">Pulselib.PulseBasicInterface.ValueHistory.t</a>)</span> <span class="arrow">&#45;&gt;</span></span>
  <span><a href="../../../PulseInvalidation/index.html#type-t">Pulselib.PulseBasicInterface.Invalidation.t</a> <span class="arrow">&#45;&gt;</s