Links should be type *ApiKeyLinks and *ApiKeyResponseLinks
CallbackResponse Links should be of type *CallbackResponseLinks
Introduce CardHoldResponseLinks. Rm un-necessary omitempty
go fmt for Card struct
Introduce CardLinks type
Introduce CreditResponseLinks type
Customer Links should be a pointer. Rm unnecessary omitempty
DisputResponse Meta shouldn't be omitempty
Introduce type EventLinks
OrderResponse should have 0 omitempty annotations
Rm unnecessary omitempty annotations
Rm unnecessary omitempty annotations
Introduce types VerificationLinks & VerificationResponseLinks
Add type MarketplaceLinks
Update tests to reflect typed Links attributes