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<?php

/**
 * Class TNW_Salesforce_Model_Observer
 */
class TNW_Salesforce_Model_Observer
{
 
    public function syncMappingInvoiceAfter(Varien_Event_Observer $observer) {
		/**
		 * Mapping objects
		 * @var TNW_SalesforceAccountingseed_Model_Sync_Mapping_OrderInvoice_OrderBilling $_mapping 
		 * 
		 * Example:
		 *     object(TNW_Accountingseed_Model_Sync_Mapping_Invoice_Billing)[600]
		 *       protected '_type' => string 'invoice' (length=7)       // used $_mapping->getType()
		 *       protected '_allowedMappingTypes' =>                    // used $_mapping->getAllowedMappingTypes()
		 *         array (size=8)
		 *           0 => string 'Customer' (length=8)
		 *           1 => string 'Billing' (length=7)
		 *           2 => string 'Shipping' (length=8)
		 *           3 => string 'Custom' (length=6)
		 *           4 => string 'Order' (length=5)
		 *           5 => string 'Customer Group' (length=14)
		 *           6 => string 'Payment' (length=7)
		 *           7 => string 'Aitoc' (length=5)
		 *       protected '_mappingCollection' =>					    // used $_mapping->getMappingCollection()
		 *         object(TNW_Salesforce_Model_Mysql4_Mapping_Collection)[621]
		 *           protected '_items' => 
		 *             array (size=0)
		 *           ...
		 *       protected '_sync' => 								    // used $_mapping->getSync()
		 *         object(TNW_Accountingseed_Helper_Salesforce_Billing)
		 *       ...
		 */
		$_mapping = $observer->getData('mapping');

		/**
		 * Entity objects
		 * @var Mage_Sales_Model_Order_Invoice $_entity 
		 */
		$_entity = $observer->getData('entity');

		/**
		 * Additional entity objects
		 * @var null $_additional_object 
		 */
		$_additional_object = $observer->getData('additionalObject');

		// Your custom code
    }
 
}