Filters the discount code object for the code used in this order.

apply_filters( 'pmpro_order_discount_code', object $this->discount_code, MemberOrder $this );

Parameters

$this->discount_code

object; Discount Code object for the order

$this

object; MemberOrder

Source

File: https://github.com/strangerstudios/paid-memberships-pro/blob/master/classes/class.memberorder.php