code: public static com.liferay.commerce.currency.model.CommerceCurrency updateCommerceCurrency(
  		com.liferay.commerce.currency.model.CommerceCurrency commerceCurrency) {
  		return getService().updateCommerceCurrency(commerceCurrency);
  	}
docs: Updates the commerce currency in the database or adds it if it does not yet exist. Also notifies the appropriate model listeners.
  
  @param commerceCurrency the commerce currency
  @return the commerce currency that was updated