This field resolves to PaymentLink, which has the following fields:
code
ID!
customerData
CustomerData
customerNote
String
downloads
[ PaymentLinkDownload! ]!
downloadsV2
[ Download ]
grandTotal
Money!
isExpired
Boolean!
isPaid
isRevoked
items
[ PaymentLinkItem! ]!
owner
PaymentLinkOwner
paymentMethods
[ PaymentMethod! ]!
payments
[ Payment! ]!