AsyncSequence を購読 • サブスクリプションの更新 • オファーコード • 他端末経由の購 入 etc... 1 7 let result = try await product.purchase() switch result { case let .success(verificationResult): switch verificationResult { case .verified(let signedType): // վ͟Μ͞Ε͍ͯͳ͍͜ͱΛ֬ೝ case let .unverified(_, verificationError): } case .pending, .userCancelled: } Task { for await verificationResult in Transaction.updates { switch verificationResult { ... } } }