/// <summary>
/// TBD
/// </summary>
/// <param name="subject">Tracked subject</param>
/// <param name="customMessage">Terminated custom message</param>
public void TerminatedQueuedFor(IActorRef subject, Option <object> customMessage)
{
_state = _state.AddTerminated(subject, customMessage);
}
public void TerminatedQueuedFor(IActorRef subject)
{
_state = _state.AddTerminated(subject);
}