docs: public NotificationChain basicSetValidationTime(Parameter newValidationTime, NotificationChain msgs) {
  		Parameter oldValidationTime = validationTime;
  		validationTime = newValidationTime;
  		if (eNotificationRequired()) {
  			ENotificationImpl notification = new ENotificationImpl(this, Notification.SET, BpsimPackage.TIME_PARAMETERS__VALIDATION_TIME, oldValidationTime, newValidationTime);
  			if (msgs == null) msgs = notification; else msgs.add(notification);
  		}
  		return msgs;
  	}