ss="anchor"></a><code><span><span class="keyword">val</span> invalidate : 
  <span><span>(<a href="../../PulseAbstractValue/index.html#type-t">PulseBasicInterface.AbstractValue.t</a> * <a href="../../PulseValueHistory/index.html#type-t">PulseBasicInterface.ValueHistory.t</a>)</span> <span class="arrow">&#45;&gt;</span></span>
  <span><a href="../../PulseInvalidation/index.html#type-t">PulseBasicInterface.Invalidation.t</a> <span class="arrow">&#45;&gt;</span></span>
  <span><a href="../../../IBase/Location/