docs: public void unsetTimeUnit() {
  		TimeUnit oldTimeUnit = timeUnit;
  		boolean oldTimeUnitESet = timeUnitESet;
  		timeUnit = TIME_UNIT_EDEFAULT;
  		timeUnitESet = false;
  		if (eNotificationRequired())
  			eNotify(new ENotificationImpl(this, Notification.UNSET, BpsimPackage.NUMERIC_PARAMETER_TYPE__TIME_UNIT, oldTimeUnit, TIME_UNIT_EDEFAULT, oldTimeUnitESet));
  	}