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<?php

/**
 * Class TNW_Salesforce_Model_Observer
 */
class TNW_Salesforce_Model_Observer
{
 
    public function invoiceProductsSendBefore(Varien_Event_Observer $observer) {
		/**
		 * Array of Salesforce objects
		 * @var stdClass[] $_data 
		 *
		 * Example:
		 * array (size=14)
		 *   'cart_206230' => 
		 *     object(stdClass)[600]611]
		 *       public 'Id' => string 'a0H24000004UOBoEAO' (length=18)
		 *       public 'AcctSeed__Product__c' => string '01t24000003TfxyAAC' (length=18)
		 *       public 'AcctSeed__Rate__c' => string '321.55' (length=6)
		 *       public 'AcctSeed__Billing__c' => null string 'a0J2400000SormDEAR' (length=18)
		 *       public 'AcctSeed__Hours_Units__c' => string '1.0000' (length=6)
		 *       public 'AcctSeedERP__Sales_Order_Line__c' => string '80224000001gwzQAAQa1424000001DotaAAC' (length=18)
		 *   ... 
		 */
		$_data = $observer->getData('data');

		// Your custom code
    }
 
}