/// <summary>
 /// Overridden callback. Prepends all messages in the stash to the mailbox,
 /// clears the stash. Must be called when overriding this method; otherwise stashed messages won't be
 /// propagated to DeadLetters when actor stops.
 /// </summary>
 protected override void PostStop()
 {
     try
     {
         CurrentStash.UnstashAll();
     }
     finally
     {
         base.PostStop();
     }
 }
 /// <summary>
 /// Overridden callback. Prepends all messages in the stash to the mailbox,
 /// clears the stash, stops all children, and invokes the PostStop callback.
 /// </summary>
 protected override void PreRestart(Exception reason, object message)
 {
     try
     {
         CurrentStash.UnstashAll();
     }
     finally
     {
         base.PreRestart(reason, message);
     }
 }
 /// <summary>
 /// Unstashes all messages selected by the predicate function
 /// </summary>
 public void UnstashAll(Func <Envelope, bool> predicate)
 {
     CurrentStash.UnstashAll(predicate);
 }
 /// <summary>
 /// Unstashes all messages
 /// </summary>
 public void UnstashAll()
 {
     CurrentStash.UnstashAll();
 }