Not sure what you're asking. You mean the trigger variables? They are as follows.
Code:
/**
* Event handler for onCPayAfterPaymentStatusUpdateEvent, called each time an update occurs to the payment status of the payment basket
*
* Paypal status mappings:
* CB Unified status Paypal status
* Completed <-- Completed
* Processed <-- Processed, Canceled_Reversal
* Denied <-- Denied, Expired, Failed, Voided
* Refunded <-- Reversed, Refunded, Partially-Refunded
* Pending <-- Pending, In-Progress
* RegistrationCancelled <-- A new cb registration got cancelled by user (e.g. paypal cancel payment button)
*
* @param UserTable $user User paying the payment basket
* @param cbpaidPaymentBasket $paymentBasket Payment basket
* @param cbpaidSomething[] $subscriptions Subscriptions in the basket
* @param string $unifiedStatus New Unified status (see above)
* @param string $previousUnifiedStatus Previous Unified status (see above)
* @param string $eventType type of event (paypal type): 'web_accept', 'subscr_payment', 'subscr_signup', 'subscr_modify', 'subscr_eot', 'subscr_cancel', 'subscr_failed'
* @return void
*/
public function onCPayAfterPaymentStatusUpdateEvent( &$user, &$paymentBasket, &$subscriptions, $unifiedStatus, $previousUnifiedStatus, $eventType )