The authentication token generated from providing API Keys to Sezzle Gateway
The Order Reference ID to update
A price object that defines the amount to be refunded. Amount may not be 0, negative, or exceed the total order amount. Currency must either be the order’s currency or the customer’s paying currency. This field is optional if the is_full_refund parameter is true.
UUID for the Refund. Must be unique to a Merchant
A reason for the refund
Overrides amount. If true, the order will be fully refunded. If omitted, will default to false.