On this pageSecureFieldsChangeEventPayloadtype SecureFieldsChangeEventPayload = object & object & object; Payload for events that include the state of a specific field and all fields. fieldName indicates which field triggered the event. FieldState provides the state of that specific field. Type Declaration fieldName fieldName: string; Type Declaration length? optional length: number; valid? optional valid: boolean; Type Declaration fields fields: object; fields.cardNumber? optional cardNumber: object; fields.cardNumber.length? optional length: number; fields.cardNumber.valid? optional valid: boolean; fields.cvv? optional cvv: object; fields.cvv.length? optional length: number; fields.cvv.valid? optional valid: boolean;