code: public static com.liferay.commerce.model.CommerceShipmentItem addCommerceShipmentItem(
  		com.liferay.commerce.model.CommerceShipmentItem commerceShipmentItem) {
  		return getService().addCommerceShipmentItem(commerceShipmentItem);
  	}
docs: Adds the commerce shipment item to the database. Also notifies the appropriate model listeners.
  
  @param commerceShipmentItem the commerce shipment item
  @return the commerce shipment item that was added