PromotionalOffer constructor
const
PromotionalOffer()
Implementation
const factory PromotionalOffer(
/// Identifier agreed upon with the App Store for a discount of your choosing.
String identifier,
/// The identifier of the public/private key pair agreed upon with the
/// App Store when the keys were generated.
String keyIdentifier,
/// One-time use random entropy-adding value for security.
String nonce,
/// The cryptographic signature generated by your private key.
String signature,
/// Timestamp of when the signature is created.
int timestamp,
) = _PromotionalOffer;