On this pageSecureFieldsConfigConfiguration for the Vault SDK Adapter. Properties brands brands: ( | "AMERICAN_EXPRESS" | "CARTE_BANCAIRE" | "MASTERCARD" | "VISA" | "MAESTRO" | "DINERS_CLUB" | "DISCOVER" | "UNIONPAY" | "JCB")[]; Eligible card networks for the vault form. fields fields: object; Targets and labels for the iframe fields. The 'cvv' field is required; 'cardNumber' is optional. NameTypecardNumber?SecureFieldsFieldConfigcvvSecureFieldsFieldConfig styles? optional styles: object; Applicable styles for the iframe fields. NameTypefontSrc?stringinputSecureFieldsStyles & object