def update_refund(self, refund_id, refund_deets):
        """Updates an existing refund transaction."""
        request = self._put('transactions/refunds/' + str(refund_id), refund_deets)
        return self.responder(request)
def update_refund ( self , refund_id , refund_deets ) : request = self . _put ( 'transactions/refunds/' + str ( refund_id ) , refund_deets ) return self . responder ( request )
Updates an existing refund transaction.