namespace StoreKit
{
    [Protocol(Name = "SKPaymentTransactionObserver", WrapperType = typeof(SKPaymentTransactionObserverWrapper))]
    [ProtocolMember(IsProperty = false, IsRequired = true, IsStatic = false, Name = "UpdatedTransactions", ParameterByRef = new[] { false, false }, ParameterType = new[] { typeof(SKPaymentQueue), typeof(SKPaymentTransaction[]) }, Selector = "paymentQueue:updatedTransactions:")]
    [ProtocolMember(IsProperty = false, IsRequired = false, IsStatic = false, Name = "RemovedTransactions", ParameterByRef = new[] { false, false }, ParameterType = new[] { typeof(SKPaymentQueue), typeof(SKPaymentTransaction[]) }, Selector = "paymentQueue:removedTransactions:")]
    [ProtocolMember(IsProperty = false, IsRequired = false, IsStatic = false, Name = "RestoreCompletedTransactionsFailedWithError", ParameterByRef = new[] { false, false }, ParameterType = new[] { typeof(SKPaymentQueue), typeof(NSError) }, Selector = "paymentQueue:restoreCompletedTransactionsFailedWithError:")]
    [ProtocolMember(IsProperty = false, IsRequired = false, IsStatic = false, Name = "RestoreCompletedTransactionsFinished", ParameterByRef = new[] { false }, ParameterType = new[] { typeof(SKPaymentQueue) }, Selector = "paymentQueueRestoreCompletedTransactionsFinished:")]
    [ProtocolMember(IsProperty = false, IsRequired = false, IsStatic = false, Name = "UpdatedDownloads", ParameterByRef = new[] { false, false }, ParameterType = new[] { typeof(SKPaymentQueue), typeof(SKDownload[]) }, Selector = "paymentQueue:updatedDownloads:")]
    [ProtocolMember(IsProperty = false, IsRequired = false, IsStatic = false, Name = "DidChangeStorefront", ParameterByRef = new[] { false }, ParameterType = new[] { typeof(SKPaymentQueue) }, Selector = "paymentQueueDidChangeStorefront:")]
    [ProtocolMember(IsProperty = false, IsRequired = false, IsStatic = false, Name = "DidRevokeEntitlements", ParameterByRef = new[] { false, false }, ParameterType = new[] { typeof(SKPaymentQueue), typeof(string[]) }, Selector = "paymentQueue:didRevokeEntitlementsForProductIdentifiers:")]
    [ProtocolMember(IsProperty = false, IsRequired = false, IsStatic = false, Name = "ShouldAddStorePayment", ParameterByRef = new[] { false, false, false }, ParameterType = new[] { typeof(SKPaymentQueue), typeof(SKPayment), typeof(SKProduct) }, ReturnType = typeof(bool), Selector = "paymentQueue:shouldAddStorePayment:forProduct:")]
    [SupportedOSPlatform("maccatalyst")]
    [SupportedOSPlatform("ios")]
    [SupportedOSPlatform("macos")]
    [SupportedOSPlatform("tvos")]
    public interface ISKPaymentTransactionObserver : INativeObject, IDisposable
    {
        [BindingImpl(BindingImplOptions.GeneratedCode | BindingImplOptions.Optimizable)]
        [Export("paymentQueue:updatedTransactions:")]
        [Preserve(Conditional = true)]
        void UpdatedTransactions(SKPaymentQueue! queue, SKPaymentTransaction![]! transactions);
    }
}