diff --git a/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.Aliases.approved.cs b/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.Aliases.approved.cs
index 3fbe804379..fa3adafe6b 100644
--- a/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.Aliases.approved.cs
+++ b/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.Aliases.approved.cs
@@ -5,26 +5,26 @@
 namespace System.Reactive.Linq
 {
     [System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
-    public class static QbservableAliases
+    public static class QbservableAliases
     {
         public static System.Reactive.Linq.IQbservable<TSource> Filter<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, bool>> predicate) { }
         public static System.Reactive.Linq.IQbservable<TSource> Filter<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, bool>> predicate) { }
-        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TCollection, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TCollection>>> collectionSelector, System.Linq.Expressions.Expression<System.Func<TSource, TCollection, TResult>> resultSelector) { }
-        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TCollection, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.IObservable<TCollection>>> collectionSelector, System.Linq.Expressions.Expression<System.Func<TSource, int, TCollection, int, TResult>> resultSelector) { }
-        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TCollection, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Collections.Generic.IEnumerable<TCollection>>> collectionSelector, System.Linq.Expressions.Expression<System.Func<TSource, TCollection, TResult>> resultSelector) { }
-        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TCollection, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.Collections.Generic.IEnumerable<TCollection>>> collectionSelector, System.Linq.Expressions.Expression<System.Func<TSource, int, TCollection, int, TResult>> resultSelector) { }
         public static System.Reactive.Linq.IQbservable<TOther> FlatMap<TSource, TOther>(this System.Reactive.Linq.IQbservable<TSource> source, System.IObservable<TOther> other) { }
-        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TResult>>> onNext, System.Linq.Expressions.Expression<System.Func<System.Exception, System.IObservable<TResult>>> onError, System.Linq.Expressions.Expression<System.Func<System.IObservable<TResult>>> onCompleted) { }
-        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.IObservable<TResult>>> onNext, System.Linq.Expressions.Expression<System.Func<System.Exception, System.IObservable<TResult>>> onError, System.Linq.Expressions.Expression<System.Func<System.IObservable<TResult>>> onCompleted) { }
+        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Collections.Generic.IEnumerable<TResult>>> selector) { }
         public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TResult>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.IObservable<TResult>>> selector) { }
         public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Threading.Tasks.Task<TResult>>> selector) { }
+        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.Collections.Generic.IEnumerable<TResult>>> selector) { }
+        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.IObservable<TResult>>> selector) { }
         public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.Threading.Tasks.Task<TResult>>> selector) { }
         public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>>> selector) { }
         public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Collections.Generic.IEnumerable<TResult>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.Collections.Generic.IEnumerable<TResult>>> selector) { }
+        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TResult>>> onNext, System.Linq.Expressions.Expression<System.Func<System.Exception, System.IObservable<TResult>>> onError, System.Linq.Expressions.Expression<System.Func<System.IObservable<TResult>>> onCompleted) { }
+        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.IObservable<TResult>>> onNext, System.Linq.Expressions.Expression<System.Func<System.Exception, System.IObservable<TResult>>> onError, System.Linq.Expressions.Expression<System.Func<System.IObservable<TResult>>> onCompleted) { }
+        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TCollection, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Collections.Generic.IEnumerable<TCollection>>> collectionSelector, System.Linq.Expressions.Expression<System.Func<TSource, TCollection, TResult>> resultSelector) { }
+        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TCollection, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TCollection>>> collectionSelector, System.Linq.Expressions.Expression<System.Func<TSource, TCollection, TResult>> resultSelector) { }
         public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TTaskResult, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Threading.Tasks.Task<TTaskResult>>> taskSelector, System.Linq.Expressions.Expression<System.Func<TSource, TTaskResult, TResult>> resultSelector) { }
+        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TCollection, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.Collections.Generic.IEnumerable<TCollection>>> collectionSelector, System.Linq.Expressions.Expression<System.Func<TSource, int, TCollection, int, TResult>> resultSelector) { }
+        public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TCollection, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.IObservable<TCollection>>> collectionSelector, System.Linq.Expressions.Expression<System.Func<TSource, int, TCollection, int, TResult>> resultSelector) { }
         public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TTaskResult, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.Threading.Tasks.Task<TTaskResult>>> taskSelector, System.Linq.Expressions.Expression<System.Func<TSource, int, TTaskResult, TResult>> resultSelector) { }
         public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TTaskResult, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Threading.CancellationToken, System.Threading.Tasks.Task<TTaskResult>>> taskSelector, System.Linq.Expressions.Expression<System.Func<TSource, TTaskResult, TResult>> resultSelector) { }
         public static System.Reactive.Linq.IQbservable<TResult> FlatMap<TSource, TTaskResult, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.Threading.CancellationToken, System.Threading.Tasks.Task<TTaskResult>>> taskSelector, System.Linq.Expressions.Expression<System.Func<TSource, int, TTaskResult, TResult>> resultSelector) { }
@@ -34,30 +34,30 @@ public class static QbservableAliases
 }
 namespace System.Reactive.Observable.Aliases
 {
-    public class static QueryLanguage
+    public static class QueryLanguage
     {
         public static System.IObservable<TSource> Filter<TSource>(this System.IObservable<TSource> source, System.Func<TSource, bool> predicate) { }
         public static System.IObservable<TSource> Filter<TSource>(this System.IObservable<TSource> source, System.Func<TSource, int, bool> predicate) { }
-        public static System.IObservable<TOther> FlatMap<TSource, TOther>(this System.IObservable<TSource> source, System.IObservable<TOther> other) { }
+        public static System.IObservable<TResult> FlatMap<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.Collections.Generic.IEnumerable<TResult>> selector) { }
         public static System.IObservable<TResult> FlatMap<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.IObservable<TResult>> selector) { }
-        public static System.IObservable<TResult> FlatMap<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.IObservable<TResult>> selector) { }
         public static System.IObservable<TResult> FlatMap<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.Threading.Tasks.Task<TResult>> selector) { }
+        public static System.IObservable<TResult> FlatMap<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.Collections.Generic.IEnumerable<TResult>> selector) { }
+        public static System.IObservable<TResult> FlatMap<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.IObservable<TResult>> selector) { }
         public static System.IObservable<TResult> FlatMap<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.Threading.Tasks.Task<TResult>> selector) { }
         public static System.IObservable<TResult> FlatMap<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>> selector) { }
         public static System.IObservable<TResult> FlatMap<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>> selector) { }
+        public static System.IObservable<TOther> FlatMap<TSource, TOther>(this System.IObservable<TSource> source, System.IObservable<TOther> other) { }
+        public static System.IObservable<TResult> FlatMap<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.IObservable<TResult>> onNext, System.Func<System.Exception, System.IObservable<TResult>> onError, System.Func<System.IObservable<TResult>> onCompleted) { }
+        public static System.IObservable<TResult> FlatMap<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.IObservable<TResult>> onNext, System.Func<System.Exception, System.IObservable<TResult>> onError, System.Func<System.IObservable<TResult>> onCompleted) { }
+        public static System.IObservable<TResult> FlatMap<TSource, TCollection, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.Collections.Generic.IEnumerable<TCollection>> collectionSelector, System.Func<TSource, TCollection, TResult> resultSelector) { }
         public static System.IObservable<TResult> FlatMap<TSource, TCollection, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.IObservable<TCollection>> collectionSelector, System.Func<TSource, TCollection, TResult> resultSelector) { }
-        public static System.IObservable<TResult> FlatMap<TSource, TCollection, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.IObservable<TCollection>> collectionSelector, System.Func<TSource, int, TCollection, int, TResult> resultSelector) { }
         public static System.IObservable<TResult> FlatMap<TSource, TTaskResult, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.Threading.Tasks.Task<TTaskResult>> taskSelector, System.Func<TSource, TTaskResult, TResult> resultSelector) { }
+        public static System.IObservable<TResult> FlatMap<TSource, TCollection, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.Collections.Generic.IEnumerable<TCollection>> collectionSelector, System.Func<TSource, int, TCollection, int, TResult> resultSelector) { }
+        public static System.IObservable<TResult> FlatMap<TSource, TCollection, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.IObservable<TCollection>> collectionSelector, System.Func<TSource, int, TCollection, int, TResult> resultSelector) { }
         public static System.IObservable<TResult> FlatMap<TSource, TTaskResult, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.Threading.Tasks.Task<TTaskResult>> taskSelector, System.Func<TSource, int, TTaskResult, TResult> resultSelector) { }
         public static System.IObservable<TResult> FlatMap<TSource, TTaskResult, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.Threading.CancellationToken, System.Threading.Tasks.Task<TTaskResult>> taskSelector, System.Func<TSource, TTaskResult, TResult> resultSelector) { }
         public static System.IObservable<TResult> FlatMap<TSource, TTaskResult, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.Threading.CancellationToken, System.Threading.Tasks.Task<TTaskResult>> taskSelector, System.Func<TSource, int, TTaskResult, TResult> resultSelector) { }
-        public static System.IObservable<TResult> FlatMap<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.IObservable<TResult>> onNext, System.Func<System.Exception, System.IObservable<TResult>> onError, System.Func<System.IObservable<TResult>> onCompleted) { }
-        public static System.IObservable<TResult> FlatMap<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.IObservable<TResult>> onNext, System.Func<System.Exception, System.IObservable<TResult>> onError, System.Func<System.IObservable<TResult>> onCompleted) { }
-        public static System.IObservable<TResult> FlatMap<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.Collections.Generic.IEnumerable<TResult>> selector) { }
-        public static System.IObservable<TResult> FlatMap<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.Collections.Generic.IEnumerable<TResult>> selector) { }
-        public static System.IObservable<TResult> FlatMap<TSource, TCollection, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.Collections.Generic.IEnumerable<TCollection>> collectionSelector, System.Func<TSource, TCollection, TResult> resultSelector) { }
-        public static System.IObservable<TResult> FlatMap<TSource, TCollection, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.Collections.Generic.IEnumerable<TCollection>> collectionSelector, System.Func<TSource, int, TCollection, int, TResult> resultSelector) { }
         public static System.IObservable<TResult> Map<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, TResult> selector) { }
         public static System.IObservable<TResult> Map<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, TResult> selector) { }
     }
-}
+}
\ No newline at end of file
diff --git a/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.Core.approved.cs b/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.Core.approved.cs
index 8cbf60245f..c39f7b02fb 100644
--- a/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.Core.approved.cs
+++ b/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.Core.approved.cs
@@ -6,18 +6,18 @@
 [assembly: System.Runtime.Versioning.TargetFramework(".NETFramework,Version=v4.6", FrameworkDisplayName=".NET Framework 4.6")]
 namespace System
 {
-    public class static ObservableExtensions
+    public static class ObservableExtensions
     {
         public static System.IDisposable Subscribe<T>(this System.IObservable<T> source) { }
         public static System.IDisposable Subscribe<T>(this System.IObservable<T> source, System.Action<T> onNext) { }
-        public static System.IDisposable Subscribe<T>(this System.IObservable<T> source, System.Action<T> onNext, System.Action<System.Exception> onError) { }
-        public static System.IDisposable Subscribe<T>(this System.IObservable<T> source, System.Action<T> onNext, System.Action onCompleted) { }
-        public static System.IDisposable Subscribe<T>(this System.IObservable<T> source, System.Action<T> onNext, System.Action<System.Exception> onError, System.Action onCompleted) { }
-        public static void Subscribe<T>(this System.IObservable<T> source, System.IObserver<T> observer, System.Threading.CancellationToken token) { }
         public static void Subscribe<T>(this System.IObservable<T> source, System.Threading.CancellationToken token) { }
+        public static System.IDisposable Subscribe<T>(this System.IObservable<T> source, System.Action<T> onNext, System.Action onCompleted) { }
+        public static System.IDisposable Subscribe<T>(this System.IObservable<T> source, System.Action<T> onNext, System.Action<System.Exception> onError) { }
         public static void Subscribe<T>(this System.IObservable<T> source, System.Action<T> onNext, System.Threading.CancellationToken token) { }
-        public static void Subscribe<T>(this System.IObservable<T> source, System.Action<T> onNext, System.Action<System.Exception> onError, System.Threading.CancellationToken token) { }
+        public static void Subscribe<T>(this System.IObservable<T> source, System.IObserver<T> observer, System.Threading.CancellationToken token) { }
         public static void Subscribe<T>(this System.IObservable<T> source, System.Action<T> onNext, System.Action onCompleted, System.Threading.CancellationToken token) { }
+        public static System.IDisposable Subscribe<T>(this System.IObservable<T> source, System.Action<T> onNext, System.Action<System.Exception> onError, System.Action onCompleted) { }
+        public static void Subscribe<T>(this System.IObservable<T> source, System.Action<T> onNext, System.Action<System.Exception> onError, System.Threading.CancellationToken token) { }
         public static void Subscribe<T>(this System.IObservable<T> source, System.Action<T> onNext, System.Action<System.Exception> onError, System.Action onCompleted, System.Threading.CancellationToken token) { }
         public static System.IDisposable SubscribeSafe<T>(this System.IObservable<T> source, System.IObserver<T> observer) { }
     }
@@ -31,10 +31,10 @@ public sealed class AnonymousObservable<T> : System.Reactive.ObservableBase<T>
     }
     public sealed class AnonymousObserver<T> : System.Reactive.ObserverBase<T>
     {
-        public AnonymousObserver(System.Action<T> onNext, System.Action<System.Exception> onError, System.Action onCompleted) { }
         public AnonymousObserver(System.Action<T> onNext) { }
-        public AnonymousObserver(System.Action<T> onNext, System.Action<System.Exception> onError) { }
         public AnonymousObserver(System.Action<T> onNext, System.Action onCompleted) { }
+        public AnonymousObserver(System.Action<T> onNext, System.Action<System.Exception> onError) { }
+        public AnonymousObserver(System.Action<T> onNext, System.Action<System.Exception> onError, System.Action onCompleted) { }
         protected override void OnCompletedCore() { }
         protected override void OnErrorCore(System.Exception error) { }
         protected override void OnNextCore(T value) { }
@@ -54,21 +54,21 @@ public class EventPattern<TSender, TEventArgs> : System.IEquatable<System.Reacti
         public EventPattern(TSender sender, TEventArgs e) { }
         public TEventArgs EventArgs { get; }
         public TSender Sender { get; }
-        public bool Equals(System.Reactive.EventPattern<TSender, TEventArgs> other) { }
         public override bool Equals(object obj) { }
+        public bool Equals(System.Reactive.EventPattern<TSender, TEventArgs> other) { }
         public override int GetHashCode() { }
-        public static bool ==(System.Reactive.EventPattern<TSender, TEventArgs> first, System.Reactive.EventPattern<TSender, TEventArgs> second) { }
         public static bool !=(System.Reactive.EventPattern<TSender, TEventArgs> first, System.Reactive.EventPattern<TSender, TEventArgs> second) { }
+        public static bool ==(System.Reactive.EventPattern<TSender, TEventArgs> first, System.Reactive.EventPattern<TSender, TEventArgs> second) { }
     }
     [System.AttributeUsage(System.AttributeTargets.Assembly | System.AttributeTargets.Module | System.AttributeTargets.Class | System.AttributeTargets.Struct | System.AttributeTargets.Enum | System.AttributeTargets.Constructor | System.AttributeTargets.Method | System.AttributeTargets.Property | System.AttributeTargets.Field | System.AttributeTargets.Event | System.AttributeTargets.Interface | System.AttributeTargets.Parameter | System.AttributeTargets.Delegate | System.AttributeTargets.ReturnValue | System.AttributeTargets.GenericParameter | System.AttributeTargets.All)]
     [System.Reactive.Experimental]
     public sealed class ExperimentalAttribute : System.Attribute
     {
-        public Experimental { }
+        public ExperimentalAttribute() { }
     }
     public interface IEventPatternSource<TEventArgs>
     {
-        public event System.EventHandler<TEventArgs> OnNext;
+        event System.EventHandler<TEventArgs> OnNext;
     }
     public interface IEventPattern<out TSender, out TEventArgs>
     {
@@ -77,7 +77,7 @@ public interface IEventPattern<out TSender, out TEventArgs>
     }
     public interface IEventSource<out T>
     {
-        public event System.Action<T> OnNext;
+        event System.Action<T> OnNext;
     }
     public interface IObserver<in TValue, out TResult>
     {
@@ -99,10 +99,13 @@ public interface ITaskObservable<out T> : System.IObservable<T>
     public class ListObservable<T> : System.Collections.Generic.ICollection<T>, System.Collections.Generic.IEnumerable<T>, System.Collections.Generic.IList<T>, System.Collections.IEnumerable, System.IObservable<object>
     {
         public ListObservable(System.IObservable<T> source) { }
-        public int Count { get; }
-        public bool IsReadOnly { get; }
+        [System.Runtime.CompilerServices.IndexerName("Item")]
+        public int Item { get; }
+        [System.Runtime.CompilerServices.IndexerName("Item")]
+        public bool Item { get; }
         public T this[int index] { get; set; }
-        public T Value { get; }
+        [System.Runtime.CompilerServices.IndexerName("Item")]
+        public T Item { get; }
         public void Add(T item) { }
         public void Clear() { }
         public bool Contains(T item) { }
@@ -114,7 +117,7 @@ public class ListObservable<T> : System.Collections.Generic.ICollection<T>, Syst
         public void RemoveAt(int index) { }
         public System.IDisposable Subscribe(System.IObserver<object> observer) { }
     }
-    public class static Notification
+    public static class Notification
     {
         public static System.Reactive.Notification<T> CreateOnCompleted<T>() { }
         public static System.Reactive.Notification<T> CreateOnError<T>(System.Exception error) { }
@@ -134,15 +137,15 @@ public abstract class Notification<T> : System.IEquatable<System.Reactive.Notifi
         public abstract System.Reactive.NotificationKind Kind { get; }
         public abstract T Value { get; }
         public abstract void Accept(System.IObserver<T> observer);
-        public abstract TResult Accept<TResult>(System.Reactive.IObserver<T, TResult> observer);
         public abstract void Accept(System.Action<T> onNext, System.Action<System.Exception> onError, System.Action onCompleted);
+        public abstract TResult Accept<TResult>(System.Reactive.IObserver<T, TResult> observer);
         public abstract TResult Accept<TResult>(System.Func<T, TResult> onNext, System.Func<System.Exception, TResult> onError, System.Func<TResult> onCompleted);
-        public abstract bool Equals(System.Reactive.Notification<T> other);
         public override bool Equals(object obj) { }
+        public abstract bool Equals(System.Reactive.Notification<T> other);
         public System.IObservable<T> ToObservable() { }
         public System.IObservable<T> ToObservable(System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static bool ==(System.Reactive.Notification<T> left, System.Reactive.Notification<T> right) { }
         public static bool !=(System.Reactive.Notification<T> left, System.Reactive.Notification<T> right) { }
+        public static bool ==(System.Reactive.Notification<T> left, System.Reactive.Notification<T> right) { }
     }
     public abstract class ObservableBase<T> : System.IObservable<T>
     {
@@ -150,13 +153,13 @@ public abstract class ObservableBase<T> : System.IObservable<T>
         public System.IDisposable Subscribe(System.IObserver<T> observer) { }
         protected abstract System.IDisposable SubscribeCore(System.IObserver<T> observer);
     }
-    public class static Observer
+    public static class Observer
     {
         public static System.IObserver<T> AsObserver<T>(this System.IObserver<T> observer) { }
         public static System.IObserver<T> Checked<T>(this System.IObserver<T> observer) { }
         public static System.IObserver<T> Create<T>(System.Action<T> onNext) { }
-        public static System.IObserver<T> Create<T>(System.Action<T> onNext, System.Action<System.Exception> onError) { }
         public static System.IObserver<T> Create<T>(System.Action<T> onNext, System.Action onCompleted) { }
+        public static System.IObserver<T> Create<T>(System.Action<T> onNext, System.Action<System.Exception> onError) { }
         public static System.IObserver<T> Create<T>(System.Action<T> onNext, System.Action<System.Exception> onError, System.Action onCompleted) { }
         public static System.IObserver<T> NotifyOn<T>(this System.IObserver<T> observer, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObserver<T> NotifyOn<T>(this System.IObserver<T> observer, System.Threading.SynchronizationContext context) { }
@@ -187,14 +190,14 @@ public struct TimeInterval<T> : System.IEquatable<System.Reactive.TimeInterval<T
         public TimeInterval(T value, System.TimeSpan interval) { }
         public System.TimeSpan Interval { get; }
         public T Value { get; }
-        public bool Equals(System.Reactive.TimeInterval<T> other) { }
         public override bool Equals(object obj) { }
+        public bool Equals(System.Reactive.TimeInterval<T> other) { }
         public override int GetHashCode() { }
         public override string ToString() { }
-        public static bool ==(System.Reactive.TimeInterval<T> first, System.Reactive.TimeInterval<T> second) { }
         public static bool !=(System.Reactive.TimeInterval<T> first, System.Reactive.TimeInterval<T> second) { }
+        public static bool ==(System.Reactive.TimeInterval<T> first, System.Reactive.TimeInterval<T> second) { }
     }
-    public class static Timestamped
+    public static class Timestamped
     {
         public static System.Reactive.Timestamped<T> Create<T>(T value, System.DateTimeOffset timestamp) { }
     }
@@ -203,22 +206,22 @@ public struct Timestamped<T> : System.IEquatable<System.Reactive.Timestamped<T>>
         public Timestamped(T value, System.DateTimeOffset timestamp) { }
         public System.DateTimeOffset Timestamp { get; }
         public T Value { get; }
-        public bool Equals(System.Reactive.Timestamped<T> other) { }
         public override bool Equals(object obj) { }
+        public bool Equals(System.Reactive.Timestamped<T> other) { }
         public override int GetHashCode() { }
         public override string ToString() { }
-        public static bool ==(System.Reactive.Timestamped<T> first, System.Reactive.Timestamped<T> second) { }
         public static bool !=(System.Reactive.Timestamped<T> first, System.Reactive.Timestamped<T> second) { }
+        public static bool ==(System.Reactive.Timestamped<T> first, System.Reactive.Timestamped<T> second) { }
     }
     public struct Unit : System.IEquatable<System.Reactive.Unit>
     {
         public static System.Reactive.Unit Default { get; }
-        public bool Equals(System.Reactive.Unit other) { }
         public override bool Equals(object obj) { }
+        public bool Equals(System.Reactive.Unit other) { }
         public override int GetHashCode() { }
         public override string ToString() { }
-        public static bool ==(System.Reactive.Unit first, System.Reactive.Unit second) { }
         public static bool !=(System.Reactive.Unit first, System.Reactive.Unit second) { }
+        public static bool ==(System.Reactive.Unit first, System.Reactive.Unit second) { }
     }
 }
 namespace System.Reactive.Concurrency
@@ -239,11 +242,11 @@ public class ControlScheduler : System.Reactive.Concurrency.LocalScheduler, Syst
     }
     public sealed class CurrentThreadScheduler : System.Reactive.Concurrency.LocalScheduler
     {
-        public static System.Reactive.Concurrency.CurrentThreadScheduler Instance { get; }
-        public static bool IsScheduleRequired { get; }
         [System.Obsolete("This instance property is no longer supported. Use CurrentThreadScheduler.IsSched" +
             "uleRequired instead.")]
         public bool ScheduleRequired { get; }
+        public static System.Reactive.Concurrency.CurrentThreadScheduler Instance { get; }
+        public static bool IsScheduleRequired { get; }
         public override System.IDisposable Schedule<TState>(TState state, System.TimeSpan dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action) { }
     }
     public sealed class DefaultScheduler : System.Reactive.Concurrency.LocalScheduler, System.Reactive.Concurrency.ISchedulerPeriodic
@@ -258,12 +261,12 @@ public class DispatcherScheduler : System.Reactive.Concurrency.LocalScheduler, S
     {
         public DispatcherScheduler(System.Windows.Threading.Dispatcher dispatcher) { }
         public DispatcherScheduler(System.Windows.Threading.Dispatcher dispatcher, System.Windows.Threading.DispatcherPriority priority) { }
-        public static System.Reactive.Concurrency.DispatcherScheduler Current { get; }
         public System.Windows.Threading.Dispatcher Dispatcher { get; }
+        public System.Windows.Threading.DispatcherPriority Priority { get; }
+        public static System.Reactive.Concurrency.DispatcherScheduler Current { get; }
         [System.Obsolete("Use the Current property to retrieve the DispatcherScheduler instance for the cur" +
             "rent thread\'s Dispatcher object.")]
         public static System.Reactive.Concurrency.DispatcherScheduler Instance { get; }
-        public System.Windows.Threading.DispatcherPriority Priority { get; }
         public override System.IDisposable Schedule<TState>(TState state, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action) { }
         public override System.IDisposable Schedule<TState>(TState state, System.TimeSpan dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action) { }
         public System.IDisposable SchedulePeriodic<TState>(TState state, System.TimeSpan period, System.Func<TState, TState> action) { }
@@ -314,8 +317,8 @@ public interface IScheduler
     {
         System.DateTimeOffset Now { get; }
         System.IDisposable Schedule<TState>(TState state, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action);
-        System.IDisposable Schedule<TState>(TState state, System.TimeSpan dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action);
         System.IDisposable Schedule<TState>(TState state, System.DateTimeOffset dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action);
+        System.IDisposable Schedule<TState>(TState state, System.TimeSpan dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action);
     }
     public interface ISchedulerLongRunning
     {
@@ -345,8 +348,8 @@ public abstract class LocalScheduler : System.IServiceProvider, System.Reactive.
         public virtual System.DateTimeOffset Now { get; }
         protected virtual object GetService(System.Type serviceType) { }
         public virtual System.IDisposable Schedule<TState>(TState state, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action) { }
-        public abstract System.IDisposable Schedule<TState>(TState state, System.TimeSpan dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action);
         public virtual System.IDisposable Schedule<TState>(TState state, System.DateTimeOffset dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action) { }
+        public abstract System.IDisposable Schedule<TState>(TState state, System.TimeSpan dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action);
         public virtual System.Reactive.Concurrency.IStopwatch StartStopwatch() { }
     }
     public sealed class NewThreadScheduler : System.Reactive.Concurrency.LocalScheduler, System.Reactive.Concurrency.ISchedulerLongRunning, System.Reactive.Concurrency.ISchedulerPeriodic
@@ -371,21 +374,21 @@ public abstract class ScheduledItem<TAbsolute> : System.IComparable<System.React
         public override int GetHashCode() { }
         public void Invoke() { }
         protected abstract System.IDisposable InvokeCore();
-        public static bool ==(System.Reactive.Concurrency.ScheduledItem<TAbsolute> left, System.Reactive.Concurrency.ScheduledItem<TAbsolute> right) { }
-        public static bool >(System.Reactive.Concurrency.ScheduledItem<TAbsolute> left, System.Reactive.Concurrency.ScheduledItem<TAbsolute> right) { }
-        public static bool >=(System.Reactive.Concurrency.ScheduledItem<TAbsolute> left, System.Reactive.Concurrency.ScheduledItem<TAbsolute> right) { }
         public static bool !=(System.Reactive.Concurrency.ScheduledItem<TAbsolute> left, System.Reactive.Concurrency.ScheduledItem<TAbsolute> right) { }
         public static bool <(System.Reactive.Concurrency.ScheduledItem<TAbsolute> left, System.Reactive.Concurrency.ScheduledItem<TAbsolute> right) { }
         public static bool <=(System.Reactive.Concurrency.ScheduledItem<TAbsolute> left, System.Reactive.Concurrency.ScheduledItem<TAbsolute> right) { }
+        public static bool ==(System.Reactive.Concurrency.ScheduledItem<TAbsolute> left, System.Reactive.Concurrency.ScheduledItem<TAbsolute> right) { }
+        public static bool >(System.Reactive.Concurrency.ScheduledItem<TAbsolute> left, System.Reactive.Concurrency.ScheduledItem<TAbsolute> right) { }
+        public static bool >=(System.Reactive.Concurrency.ScheduledItem<TAbsolute> left, System.Reactive.Concurrency.ScheduledItem<TAbsolute> right) { }
     }
     public sealed class ScheduledItem<TAbsolute, TValue> : System.Reactive.Concurrency.ScheduledItem<TAbsolute>
         where TAbsolute : System.IComparable<TAbsolute>
     {
-        public ScheduledItem(System.Reactive.Concurrency.IScheduler scheduler, TValue state, System.Func<System.Reactive.Concurrency.IScheduler, TValue, System.IDisposable> action, TAbsolute dueTime, System.Collections.Generic.IComparer<TAbsolute> comparer) { }
         public ScheduledItem(System.Reactive.Concurrency.IScheduler scheduler, TValue state, System.Func<System.Reactive.Concurrency.IScheduler, TValue, System.IDisposable> action, TAbsolute dueTime) { }
+        public ScheduledItem(System.Reactive.Concurrency.IScheduler scheduler, TValue state, System.Func<System.Reactive.Concurrency.IScheduler, TValue, System.IDisposable> action, TAbsolute dueTime, System.Collections.Generic.IComparer<TAbsolute> comparer) { }
         protected override System.IDisposable InvokeCore() { }
     }
-    public class static Scheduler
+    public static class Scheduler
     {
         public static System.Reactive.Concurrency.CurrentThreadScheduler CurrentThread { get; }
         public static System.Reactive.Concurrency.DefaultScheduler Default { get; }
@@ -409,35 +412,35 @@ public static System.Reactive.Concurrency.IScheduler Catch<TException>(this Syst
         public static System.Reactive.Concurrency.IScheduler DisableOptimizations(this System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Concurrency.IScheduler DisableOptimizations(this System.Reactive.Concurrency.IScheduler scheduler, params System.Type[] optimizationInterfaces) { }
         public static System.TimeSpan Normalize(System.TimeSpan timeSpan) { }
+        public static System.IDisposable Schedule(this System.Reactive.Concurrency.IScheduler scheduler, System.Action action) { }
         public static System.IDisposable Schedule(this System.Reactive.Concurrency.IScheduler scheduler, System.Action<System.Action> action) { }
-        public static System.IDisposable Schedule<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.Action<TState, System.Action<TState>> action) { }
-        public static System.IDisposable Schedule(this System.Reactive.Concurrency.IScheduler scheduler, System.TimeSpan dueTime, System.Action<System.Action<System.TimeSpan>> action) { }
-        public static System.IDisposable Schedule<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.TimeSpan dueTime, System.Action<TState, System.Action<TState, System.TimeSpan>> action) { }
+        public static System.IDisposable Schedule(this System.Reactive.Concurrency.IScheduler scheduler, System.DateTimeOffset dueTime, System.Action action) { }
         public static System.IDisposable Schedule(this System.Reactive.Concurrency.IScheduler scheduler, System.DateTimeOffset dueTime, System.Action<System.Action<System.DateTimeOffset>> action) { }
-        public static System.IDisposable Schedule<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.DateTimeOffset dueTime, System.Action<TState, System.Action<TState, System.DateTimeOffset>> action) { }
-        public static System.IDisposable Schedule(this System.Reactive.Concurrency.IScheduler scheduler, System.Action action) { }
         public static System.IDisposable Schedule(this System.Reactive.Concurrency.IScheduler scheduler, System.TimeSpan dueTime, System.Action action) { }
-        public static System.IDisposable Schedule(this System.Reactive.Concurrency.IScheduler scheduler, System.DateTimeOffset dueTime, System.Action action) { }
-        public static System.IDisposable ScheduleAsync<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.Threading.CancellationToken, System.Threading.Tasks.Task> action) { }
-        public static System.IDisposable ScheduleAsync<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.Threading.CancellationToken, System.Threading.Tasks.Task<System.IDisposable>> action) { }
+        public static System.IDisposable Schedule(this System.Reactive.Concurrency.IScheduler scheduler, System.TimeSpan dueTime, System.Action<System.Action<System.TimeSpan>> action) { }
+        public static System.IDisposable Schedule<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.Action<TState, System.Action<TState>> action) { }
+        public static System.IDisposable Schedule<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.DateTimeOffset dueTime, System.Action<TState, System.Action<TState, System.DateTimeOffset>> action) { }
+        public static System.IDisposable Schedule<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.TimeSpan dueTime, System.Action<TState, System.Action<TState, System.TimeSpan>> action) { }
         public static System.IDisposable ScheduleAsync(this System.Reactive.Concurrency.IScheduler scheduler, System.Func<System.Reactive.Concurrency.IScheduler, System.Threading.CancellationToken, System.Threading.Tasks.Task> action) { }
         public static System.IDisposable ScheduleAsync(this System.Reactive.Concurrency.IScheduler scheduler, System.Func<System.Reactive.Concurrency.IScheduler, System.Threading.CancellationToken, System.Threading.Tasks.Task<System.IDisposable>> action) { }
-        public static System.IDisposable ScheduleAsync<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.TimeSpan dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.Threading.CancellationToken, System.Threading.Tasks.Task> action) { }
-        public static System.IDisposable ScheduleAsync<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.TimeSpan dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.Threading.CancellationToken, System.Threading.Tasks.Task<System.IDisposable>> action) { }
+        public static System.IDisposable ScheduleAsync(this System.Reactive.Concurrency.IScheduler scheduler, System.DateTimeOffset dueTime, System.Func<System.Reactive.Concurrency.IScheduler, System.Threading.CancellationToken, System.Threading.Tasks.Task> action) { }
+        public static System.IDisposable ScheduleAsync(this System.Reactive.Concurrency.IScheduler scheduler, System.DateTimeOffset dueTime, System.Func<System.Reactive.Concurrency.IScheduler, System.Threading.CancellationToken, System.Threading.Tasks.Task<System.IDisposable>> action) { }
         public static System.IDisposable ScheduleAsync(this System.Reactive.Concurrency.IScheduler scheduler, System.TimeSpan dueTime, System.Func<System.Reactive.Concurrency.IScheduler, System.Threading.CancellationToken, System.Threading.Tasks.Task> action) { }
         public static System.IDisposable ScheduleAsync(this System.Reactive.Concurrency.IScheduler scheduler, System.TimeSpan dueTime, System.Func<System.Reactive.Concurrency.IScheduler, System.Threading.CancellationToken, System.Threading.Tasks.Task<System.IDisposable>> action) { }
+        public static System.IDisposable ScheduleAsync<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.Threading.CancellationToken, System.Threading.Tasks.Task> action) { }
+        public static System.IDisposable ScheduleAsync<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.Threading.CancellationToken, System.Threading.Tasks.Task<System.IDisposable>> action) { }
         public static System.IDisposable ScheduleAsync<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.DateTimeOffset dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.Threading.CancellationToken, System.Threading.Tasks.Task> action) { }
         public static System.IDisposable ScheduleAsync<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.DateTimeOffset dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.Threading.CancellationToken, System.Threading.Tasks.Task<System.IDisposable>> action) { }
-        public static System.IDisposable ScheduleAsync(this System.Reactive.Concurrency.IScheduler scheduler, System.DateTimeOffset dueTime, System.Func<System.Reactive.Concurrency.IScheduler, System.Threading.CancellationToken, System.Threading.Tasks.Task> action) { }
-        public static System.IDisposable ScheduleAsync(this System.Reactive.Concurrency.IScheduler scheduler, System.DateTimeOffset dueTime, System.Func<System.Reactive.Concurrency.IScheduler, System.Threading.CancellationToken, System.Threading.Tasks.Task<System.IDisposable>> action) { }
+        public static System.IDisposable ScheduleAsync<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.TimeSpan dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.Threading.CancellationToken, System.Threading.Tasks.Task> action) { }
+        public static System.IDisposable ScheduleAsync<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.TimeSpan dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.Threading.CancellationToken, System.Threading.Tasks.Task<System.IDisposable>> action) { }
         public static System.IDisposable ScheduleLongRunning(this System.Reactive.Concurrency.ISchedulerLongRunning scheduler, System.Action<System.Reactive.Disposables.ICancelable> action) { }
-        public static System.IDisposable SchedulePeriodic<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.TimeSpan period, System.Func<TState, TState> action) { }
-        public static System.IDisposable SchedulePeriodic<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.TimeSpan period, System.Action<TState> action) { }
         public static System.IDisposable SchedulePeriodic(this System.Reactive.Concurrency.IScheduler scheduler, System.TimeSpan period, System.Action action) { }
-        public static System.Reactive.Concurrency.SchedulerOperation Sleep(this System.Reactive.Concurrency.IScheduler scheduler, System.TimeSpan dueTime) { }
-        public static System.Reactive.Concurrency.SchedulerOperation Sleep(this System.Reactive.Concurrency.IScheduler scheduler, System.TimeSpan dueTime, System.Threading.CancellationToken cancellationToken) { }
+        public static System.IDisposable SchedulePeriodic<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.TimeSpan period, System.Action<TState> action) { }
+        public static System.IDisposable SchedulePeriodic<TState>(this System.Reactive.Concurrency.IScheduler scheduler, TState state, System.TimeSpan period, System.Func<TState, TState> action) { }
         public static System.Reactive.Concurrency.SchedulerOperation Sleep(this System.Reactive.Concurrency.IScheduler scheduler, System.DateTimeOffset dueTime) { }
+        public static System.Reactive.Concurrency.SchedulerOperation Sleep(this System.Reactive.Concurrency.IScheduler scheduler, System.TimeSpan dueTime) { }
         public static System.Reactive.Concurrency.SchedulerOperation Sleep(this System.Reactive.Concurrency.IScheduler scheduler, System.DateTimeOffset dueTime, System.Threading.CancellationToken cancellationToken) { }
+        public static System.Reactive.Concurrency.SchedulerOperation Sleep(this System.Reactive.Concurrency.IScheduler scheduler, System.TimeSpan dueTime, System.Threading.CancellationToken cancellationToken) { }
         public static System.Reactive.Concurrency.IStopwatch StartStopwatch(this System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Concurrency.SchedulerOperation Yield(this System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Concurrency.SchedulerOperation Yield(this System.Reactive.Concurrency.IScheduler scheduler, System.Threading.CancellationToken cancellationToken) { }
@@ -464,7 +467,7 @@ public class SchedulerQueue<TAbsolute>
         public System.Reactive.Concurrency.ScheduledItem<TAbsolute> Peek() { }
         public bool Remove(System.Reactive.Concurrency.ScheduledItem<TAbsolute> scheduledItem) { }
     }
-    public class static Synchronization
+    public static class Synchronization
     {
         public static System.IObservable<TSource> ObserveOn<TSource>(System.IObservable<TSource> source, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> ObserveOn<TSource>(System.IObservable<TSource> source, System.Threading.SynchronizationContext context) { }
@@ -514,8 +517,8 @@ public abstract class VirtualTimeSchedulerBase<TAbsolute, TRelative> : System.IS
         protected abstract System.Reactive.Concurrency.IScheduledItem<TAbsolute> GetNext();
         protected virtual object GetService(System.Type serviceType) { }
         public System.IDisposable Schedule<TState>(TState state, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action) { }
-        public System.IDisposable Schedule<TState>(TState state, System.TimeSpan dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action) { }
         public System.IDisposable Schedule<TState>(TState state, System.DateTimeOffset dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action) { }
+        public System.IDisposable Schedule<TState>(TState state, System.TimeSpan dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action) { }
         public abstract System.IDisposable ScheduleAbsolute<TState>(TState state, TAbsolute dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action);
         public System.IDisposable ScheduleRelative<TState>(TState state, TRelative dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action) { }
         public void Sleep(TRelative time) { }
@@ -525,7 +528,7 @@ public abstract class VirtualTimeSchedulerBase<TAbsolute, TRelative> : System.IS
         protected abstract System.DateTimeOffset ToDateTimeOffset(TAbsolute absolute);
         protected abstract TRelative ToRelative(System.TimeSpan timeSpan);
     }
-    public class static VirtualTimeSchedulerExtensions
+    public static class VirtualTimeSchedulerExtensions
     {
         public static System.IDisposable ScheduleAbsolute<TAbsolute, TRelative>(this System.Reactive.Concurrency.VirtualTimeSchedulerBase<TAbsolute, TRelative> scheduler, TAbsolute dueTime, System.Action action)
             where TAbsolute : System.IComparable<TAbsolute> { }
@@ -551,8 +554,8 @@ public sealed class BooleanDisposable : System.IDisposable, System.Reactive.Disp
     }
     public sealed class CancellationDisposable : System.IDisposable, System.Reactive.Disposables.ICancelable
     {
-        public CancellationDisposable(System.Threading.CancellationTokenSource cts) { }
         public CancellationDisposable() { }
+        public CancellationDisposable(System.Threading.CancellationTokenSource cts) { }
         public bool IsDisposed { get; }
         public System.Threading.CancellationToken Token { get; }
         public void Dispose() { }
@@ -560,9 +563,9 @@ public sealed class CancellationDisposable : System.IDisposable, System.Reactive
     public sealed class CompositeDisposable : System.Collections.Generic.ICollection<System.IDisposable>, System.Collections.Generic.IEnumerable<System.IDisposable>, System.Collections.IEnumerable, System.IDisposable, System.Reactive.Disposables.ICancelable
     {
         public CompositeDisposable() { }
-        public CompositeDisposable(int capacity) { }
-        public CompositeDisposable(params System.IDisposable[] disposables) { }
         public CompositeDisposable(System.Collections.Generic.IEnumerable<System.IDisposable> disposables) { }
+        public CompositeDisposable(params System.IDisposable[] disposables) { }
+        public CompositeDisposable(int capacity) { }
         public int Count { get; }
         public bool IsDisposed { get; }
         public bool IsReadOnly { get; }
@@ -581,7 +584,7 @@ public sealed class ContextDisposable : System.IDisposable, System.Reactive.Disp
         public bool IsDisposed { get; }
         public void Dispose() { }
     }
-    public class static Disposable
+    public static class Disposable
     {
         public static System.IDisposable Empty { get; }
         public static System.IDisposable Create(System.Action dispose) { }
@@ -632,10 +635,10 @@ public abstract class StableCompositeDisposable : System.IDisposable, System.Rea
     {
         protected StableCompositeDisposable() { }
         public abstract bool IsDisposed { get; }
-        public static System.Reactive.Disposables.ICancelable Create(System.IDisposable disposable1, System.IDisposable disposable2) { }
-        public static System.Reactive.Disposables.ICancelable Create(params System.IDisposable[] disposables) { }
-        public static System.Reactive.Disposables.ICancelable Create(System.Collections.Generic.IEnumerable<System.IDisposable> disposables) { }
         public abstract void Dispose();
+        public static System.Reactive.Disposables.ICancelable Create(System.Collections.Generic.IEnumerable<System.IDisposable> disposables) { }
+        public static System.Reactive.Disposables.ICancelable Create(params System.IDisposable[] disposables) { }
+        public static System.Reactive.Disposables.ICancelable Create(System.IDisposable disposable1, System.IDisposable disposable2) { }
     }
 }
 namespace System.Reactive.Joins
@@ -806,24 +809,24 @@ public class QueryablePlan<TResult>
 }
 namespace System.Reactive.Linq
 {
-    public class static ControlObservable
+    public static class ControlObservable
     {
         public static System.IObservable<TSource> ObserveOn<TSource>(this System.IObservable<TSource> source, System.Windows.Forms.Control control) { }
         public static System.IObservable<TSource> SubscribeOn<TSource>(this System.IObservable<TSource> source, System.Windows.Forms.Control control) { }
     }
-    public class static DispatcherObservable
+    public static class DispatcherObservable
     {
-        public static System.IObservable<TSource> ObserveOn<TSource>(this System.IObservable<TSource> source, System.Windows.Threading.Dispatcher dispatcher) { }
-        public static System.IObservable<TSource> ObserveOn<TSource>(this System.IObservable<TSource> source, System.Windows.Threading.Dispatcher dispatcher, System.Windows.Threading.DispatcherPriority priority) { }
         public static System.IObservable<TSource> ObserveOn<TSource>(this System.IObservable<TSource> source, System.Reactive.Concurrency.DispatcherScheduler scheduler) { }
+        public static System.IObservable<TSource> ObserveOn<TSource>(this System.IObservable<TSource> source, System.Windows.Threading.Dispatcher dispatcher) { }
         public static System.IObservable<TSource> ObserveOn<TSource>(this System.IObservable<TSource> source, System.Windows.Threading.DispatcherObject dispatcherObject) { }
+        public static System.IObservable<TSource> ObserveOn<TSource>(this System.IObservable<TSource> source, System.Windows.Threading.Dispatcher dispatcher, System.Windows.Threading.DispatcherPriority priority) { }
         public static System.IObservable<TSource> ObserveOn<TSource>(this System.IObservable<TSource> source, System.Windows.Threading.DispatcherObject dispatcherObject, System.Windows.Threading.DispatcherPriority priority) { }
         public static System.IObservable<TSource> ObserveOnDispatcher<TSource>(this System.IObservable<TSource> source) { }
         public static System.IObservable<TSource> ObserveOnDispatcher<TSource>(this System.IObservable<TSource> source, System.Windows.Threading.DispatcherPriority priority) { }
-        public static System.IObservable<TSource> SubscribeOn<TSource>(this System.IObservable<TSource> source, System.Windows.Threading.Dispatcher dispatcher) { }
-        public static System.IObservable<TSource> SubscribeOn<TSource>(this System.IObservable<TSource> source, System.Windows.Threading.Dispatcher dispatcher, System.Windows.Threading.DispatcherPriority priority) { }
         public static System.IObservable<TSource> SubscribeOn<TSource>(this System.IObservable<TSource> source, System.Reactive.Concurrency.DispatcherScheduler scheduler) { }
+        public static System.IObservable<TSource> SubscribeOn<TSource>(this System.IObservable<TSource> source, System.Windows.Threading.Dispatcher dispatcher) { }
         public static System.IObservable<TSource> SubscribeOn<TSource>(this System.IObservable<TSource> source, System.Windows.Threading.DispatcherObject dispatcherObject) { }
+        public static System.IObservable<TSource> SubscribeOn<TSource>(this System.IObservable<TSource> source, System.Windows.Threading.Dispatcher dispatcher, System.Windows.Threading.DispatcherPriority priority) { }
         public static System.IObservable<TSource> SubscribeOn<TSource>(this System.IObservable<TSource> source, System.Windows.Threading.DispatcherObject dispatcherObject, System.Windows.Threading.DispatcherPriority priority) { }
         public static System.IObservable<TSource> SubscribeOnDispatcher<TSource>(this System.IObservable<TSource> source) { }
         public static System.IObservable<TSource> SubscribeOnDispatcher<TSource>(this System.IObservable<TSource> source, System.Windows.Threading.DispatcherPriority priority) { }
@@ -846,18 +849,18 @@ public interface IQbservable<out T> : System.IObservable<T>, System.Reactive.Lin
     [System.AttributeUsage(System.AttributeTargets.Class | System.AttributeTargets.All, Inherited=false)]
     public sealed class LocalQueryMethodImplementationTypeAttribute : System.Attribute
     {
-        public LocalQueryMethodImplementationType(System.Type targetType) { }
+        public LocalQueryMethodImplementationTypeAttribute(System.Type targetType) { }
         public System.Type TargetType { get; }
     }
-    public class static Observable
+    public static class Observable
     {
+        public static System.IObservable<TSource> Aggregate<TSource>(this System.IObservable<TSource> source, System.Func<TSource, TSource, TSource> accumulator) { }
         public static System.IObservable<TAccumulate> Aggregate<TSource, TAccumulate>(this System.IObservable<TSource> source, TAccumulate seed, System.Func<TAccumulate, TSource, TAccumulate> accumulator) { }
         public static System.IObservable<TResult> Aggregate<TSource, TAccumulate, TResult>(this System.IObservable<TSource> source, TAccumulate seed, System.Func<TAccumulate, TSource, TAccumulate> accumulator, System.Func<TAccumulate, TResult> resultSelector) { }
-        public static System.IObservable<TSource> Aggregate<TSource>(this System.IObservable<TSource> source, System.Func<TSource, TSource, TSource> accumulator) { }
         public static System.IObservable<bool> All<TSource>(this System.IObservable<TSource> source, System.Func<TSource, bool> predicate) { }
-        public static System.IObservable<TSource> Amb<TSource>(this System.IObservable<TSource> first, System.IObservable<TSource> second) { }
         public static System.IObservable<TSource> Amb<TSource>(params System.IObservable<>[] sources) { }
         public static System.IObservable<TSource> Amb<TSource>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
+        public static System.IObservable<TSource> Amb<TSource>(this System.IObservable<TSource> first, System.IObservable<TSource> second) { }
         public static System.Reactive.Joins.Pattern<TLeft, TRight> And<TLeft, TRight>(this System.IObservable<TLeft> left, System.IObservable<TRight> right) { }
         public static System.IObservable<bool> Any<TSource>(this System.IObservable<TSource> source) { }
         public static System.IObservable<bool> Any<TSource>(this System.IObservable<TSource> source, System.Func<TSource, bool> predicate) { }
@@ -865,49 +868,52 @@ public class static Observable
         public static System.IObservable<TSource> Append<TSource>(this System.IObservable<TSource> source, TSource value, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> AsObservable<TSource>(this System.IObservable<TSource> source) { }
         public static System.IObservable<TSource> AutoConnect<TSource>(this System.Reactive.Subjects.IConnectableObservable<TSource> source, int minObservers = 1, System.Action<System.IDisposable> onConnect = null) { }
-        public static System.IObservable<double> Average(this System.IObservable<double> source) { }
-        public static System.IObservable<float> Average(this System.IObservable<float> source) { }
         public static System.IObservable<decimal> Average(this System.IObservable<decimal> source) { }
+        public static System.IObservable<double> Average(this System.IObservable<double> source) { }
         public static System.IObservable<double> Average(this System.IObservable<int> source) { }
         public static System.IObservable<double> Average(this System.IObservable<long> source) { }
-        public static System.IObservable<System.Nullable<double>> Average(this System.IObservable<System.Nullable<double>> source) { }
-        public static System.IObservable<System.Nullable<float>> Average(this System.IObservable<System.Nullable<float>> source) { }
-        public static System.IObservable<System.Nullable<decimal>> Average(this System.IObservable<System.Nullable<decimal>> source) { }
-        public static System.IObservable<System.Nullable<double>> Average(this System.IObservable<System.Nullable<int>> source) { }
-        public static System.IObservable<System.Nullable<double>> Average(this System.IObservable<System.Nullable<long>> source) { }
+        public static System.IObservable<float> Average(this System.IObservable<float> source) { }
+        public static System.IObservable<decimal?> Average(this System.IObservable<decimal?> source) { }
+        public static System.IObservable<double?> Average(this System.IObservable<double?> source) { }
+        public static System.IObservable<float?> Average(this System.IObservable<float?> source) { }
+        public static System.IObservable<double?> Average(this System.IObservable<int?> source) { }
+        public static System.IObservable<double?> Average(this System.IObservable<long?> source) { }
         public static System.IObservable<decimal> Average<TSource>(this System.IObservable<TSource> source, System.Func<TSource, decimal> selector) { }
         public static System.IObservable<double> Average<TSource>(this System.IObservable<TSource> source, System.Func<TSource, double> selector) { }
-        public static System.IObservable<float> Average<TSource>(this System.IObservable<TSource> source, System.Func<TSource, float> selector) { }
         public static System.IObservable<double> Average<TSource>(this System.IObservable<TSource> source, System.Func<TSource, int> selector) { }
         public static System.IObservable<double> Average<TSource>(this System.IObservable<TSource> source, System.Func<TSource, long> selector) { }
-        public static System.IObservable<System.Nullable<decimal>> Average<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<decimal>> selector) { }
-        public static System.IObservable<System.Nullable<double>> Average<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<double>> selector) { }
-        public static System.IObservable<System.Nullable<float>> Average<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<float>> selector) { }
-        public static System.IObservable<System.Nullable<double>> Average<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<int>> selector) { }
-        public static System.IObservable<System.Nullable<double>> Average<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<long>> selector) { }
-        public static System.IObservable<System.Collections.Generic.IList<TSource>> Buffer<TSource, TBufferClosing>(this System.IObservable<TSource> source, System.Func<System.IObservable<TBufferClosing>> bufferClosingSelector) { }
-        public static System.IObservable<System.Collections.Generic.IList<TSource>> Buffer<TSource, TBufferOpening, TBufferClosing>(this System.IObservable<TSource> source, System.IObservable<TBufferOpening> bufferOpenings, System.Func<TBufferOpening, System.IObservable<TBufferClosing>> bufferClosingSelector) { }
-        public static System.IObservable<System.Collections.Generic.IList<TSource>> Buffer<TSource, TBufferBoundary>(this System.IObservable<TSource> source, System.IObservable<TBufferBoundary> bufferBoundaries) { }
+        public static System.IObservable<float> Average<TSource>(this System.IObservable<TSource> source, System.Func<TSource, float> selector) { }
+        public static System.IObservable<decimal?> Average<TSource>(this System.IObservable<TSource> source, System.Func<TSource, decimal?> selector) { }
+        public static System.IObservable<double?> Average<TSource>(this System.IObservable<TSource> source, System.Func<TSource, double?> selector) { }
+        public static System.IObservable<float?> Average<TSource>(this System.IObservable<TSource> source, System.Func<TSource, float?> selector) { }
+        public static System.IObservable<double?> Average<TSource>(this System.IObservable<TSource> source, System.Func<TSource, int?> selector) { }
+        public static System.IObservable<double?> Average<TSource>(this System.IObservable<TSource> source, System.Func<TSource, long?> selector) { }
         public static System.IObservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.IObservable<TSource> source, int count) { }
-        public static System.IObservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.IObservable<TSource> source, int count, int skip) { }
         public static System.IObservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.IObservable<TSource> source, System.TimeSpan timeSpan) { }
+        public static System.IObservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.IObservable<TSource> source, int count, int skip) { }
+        public static System.IObservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.IObservable<TSource> source, System.TimeSpan timeSpan, int count) { }
         public static System.IObservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.IObservable<TSource> source, System.TimeSpan timeSpan, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.IObservable<TSource> source, System.TimeSpan timeSpan, System.TimeSpan timeShift) { }
-        public static System.IObservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.IObservable<TSource> source, System.TimeSpan timeSpan, System.TimeSpan timeShift, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.IObservable<TSource> source, System.TimeSpan timeSpan, int count) { }
         public static System.IObservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.IObservable<TSource> source, System.TimeSpan timeSpan, int count, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.IObservable<TSource> source, System.TimeSpan timeSpan, System.TimeSpan timeShift, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<System.Collections.Generic.IList<TSource>> Buffer<TSource, TBufferClosing>(this System.IObservable<TSource> source, System.Func<System.IObservable<TBufferClosing>> bufferClosingSelector) { }
+        public static System.IObservable<System.Collections.Generic.IList<TSource>> Buffer<TSource, TBufferBoundary>(this System.IObservable<TSource> source, System.IObservable<TBufferBoundary> bufferBoundaries) { }
+        public static System.IObservable<System.Collections.Generic.IList<TSource>> Buffer<TSource, TBufferOpening, TBufferClosing>(this System.IObservable<TSource> source, System.IObservable<TBufferOpening> bufferOpenings, System.Func<TBufferOpening, System.IObservable<TBufferClosing>> bufferClosingSelector) { }
+        public static System.IObservable<TResult> Case<TValue, TResult>(System.Func<TValue> selector, System.Collections.Generic.IDictionary<TValue, System.IObservable<TResult>> sources) { }
         public static System.IObservable<TResult> Case<TValue, TResult>(System.Func<TValue> selector, System.Collections.Generic.IDictionary<TValue, System.IObservable<TResult>> sources, System.IObservable<TResult> defaultSource) { }
         public static System.IObservable<TResult> Case<TValue, TResult>(System.Func<TValue> selector, System.Collections.Generic.IDictionary<TValue, System.IObservable<TResult>> sources, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<TResult> Case<TValue, TResult>(System.Func<TValue> selector, System.Collections.Generic.IDictionary<TValue, System.IObservable<TResult>> sources) { }
         public static System.IObservable<TResult> Cast<TResult>(this System.IObservable<object> source) { }
-        public static System.IObservable<TSource> Catch<TSource, TException>(this System.IObservable<TSource> source, System.Func<TException, System.IObservable<TSource>> handler)
-            where TException : System.Exception { }
-        public static System.IObservable<TSource> Catch<TSource>(this System.IObservable<TSource> first, System.IObservable<TSource> second) { }
         public static System.IObservable<TSource> Catch<TSource>(params System.IObservable<>[] sources) { }
         public static System.IObservable<TSource> Catch<TSource>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
+        public static System.IObservable<TSource> Catch<TSource>(this System.IObservable<TSource> first, System.IObservable<TSource> second) { }
+        public static System.IObservable<TSource> Catch<TSource, TException>(this System.IObservable<TSource> source, System.Func<TException, System.IObservable<TSource>> handler)
+            where TException : System.Exception { }
         public static System.Collections.Generic.IEnumerable<System.Collections.Generic.IList<TSource>> Chunkify<TSource>(this System.IObservable<TSource> source) { }
         public static System.Collections.Generic.IEnumerable<TResult> Collect<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TResult> newCollector, System.Func<TResult, TSource, TResult> merge) { }
         public static System.Collections.Generic.IEnumerable<TResult> Collect<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TResult> getInitialCollector, System.Func<TResult, TSource, TResult> merge, System.Func<TResult, TResult> getNewCollector) { }
+        public static System.IObservable<System.Collections.Generic.IList<TSource>> CombineLatest<TSource>(params System.IObservable<>[] sources) { }
+        public static System.IObservable<System.Collections.Generic.IList<TSource>> CombineLatest<TSource>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
+        public static System.IObservable<TResult> CombineLatest<TSource, TResult>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources, System.Func<System.Collections.Generic.IList<TSource>, TResult> resultSelector) { }
         public static System.IObservable<TResult> CombineLatest<TSource1, TSource2, TResult>(this System.IObservable<TSource1> first, System.IObservable<TSource2> second, System.Func<TSource1, TSource2, TResult> resultSelector) { }
         public static System.IObservable<TResult> CombineLatest<TSource1, TSource2, TSource3, TResult>(this System.IObservable<TSource1> source1, System.IObservable<TSource2> source2, System.IObservable<TSource3> source3, System.Func<TSource1, TSource2, TSource3, TResult> resultSelector) { }
         public static System.IObservable<TResult> CombineLatest<TSource1, TSource2, TSource3, TSource4, TResult>(this System.IObservable<TSource1> source1, System.IObservable<TSource2> source2, System.IObservable<TSource3> source3, System.IObservable<TSource4> source4, System.Func<TSource1, TSource2, TSource3, TSource4, TResult> resultSelector) { }
@@ -956,41 +962,38 @@ public class static Observable
                     System.IObservable<TSource15> source15,
                     System.IObservable<TSource16> source16,
                     System.Func<TSource1, TSource2, TSource3, TSource4, TSource5, TSource6, TSource7, TSource8, TSource9, TSource10, TSource11, TSource12, TSource13, TSource14, TSource15, TSource16, TResult> resultSelector) { }
-        public static System.IObservable<TResult> CombineLatest<TSource, TResult>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources, System.Func<System.Collections.Generic.IList<TSource>, TResult> resultSelector) { }
-        public static System.IObservable<System.Collections.Generic.IList<TSource>> CombineLatest<TSource>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
-        public static System.IObservable<System.Collections.Generic.IList<TSource>> CombineLatest<TSource>(params System.IObservable<>[] sources) { }
-        public static System.IObservable<TSource> Concat<TSource>(this System.IObservable<TSource> first, System.IObservable<TSource> second) { }
         public static System.IObservable<TSource> Concat<TSource>(params System.IObservable<>[] sources) { }
         public static System.IObservable<TSource> Concat<TSource>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
         public static System.IObservable<TSource> Concat<TSource>(this System.IObservable<System.IObservable<TSource>> sources) { }
         public static System.IObservable<TSource> Concat<TSource>(this System.IObservable<System.Threading.Tasks.Task<TSource>> sources) { }
+        public static System.IObservable<TSource> Concat<TSource>(this System.IObservable<TSource> first, System.IObservable<TSource> second) { }
         public static System.IObservable<bool> Contains<TSource>(this System.IObservable<TSource> source, TSource value) { }
         public static System.IObservable<bool> Contains<TSource>(this System.IObservable<TSource> source, TSource value, System.Collections.Generic.IEqualityComparer<TSource> comparer) { }
         public static System.IObservable<int> Count<TSource>(this System.IObservable<TSource> source) { }
         public static System.IObservable<int> Count<TSource>(this System.IObservable<TSource> source, System.Func<TSource, bool> predicate) { }
-        public static System.IObservable<TResult> Create<TResult>(System.Func<System.IObserver<TResult>, System.IDisposable> subscribe) { }
         public static System.IObservable<TResult> Create<TResult>(System.Func<System.IObserver<TResult>, System.Action> subscribe) { }
-        public static System.IObservable<TResult> Create<TResult>(System.Func<System.IObserver<TResult>, System.Threading.CancellationToken, System.Threading.Tasks.Task> subscribeAsync) { }
+        public static System.IObservable<TResult> Create<TResult>(System.Func<System.IObserver<TResult>, System.IDisposable> subscribe) { }
         public static System.IObservable<TResult> Create<TResult>(System.Func<System.IObserver<TResult>, System.Threading.Tasks.Task> subscribeAsync) { }
-        public static System.IObservable<TResult> Create<TResult>(System.Func<System.IObserver<TResult>, System.Threading.CancellationToken, System.Threading.Tasks.Task<System.IDisposable>> subscribeAsync) { }
+        public static System.IObservable<TResult> Create<TResult>(System.Func<System.IObserver<TResult>, System.Threading.Tasks.Task<System.Action>> subscribeAsync) { }
         public static System.IObservable<TResult> Create<TResult>(System.Func<System.IObserver<TResult>, System.Threading.Tasks.Task<System.IDisposable>> subscribeAsync) { }
+        public static System.IObservable<TResult> Create<TResult>(System.Func<System.IObserver<TResult>, System.Threading.CancellationToken, System.Threading.Tasks.Task> subscribeAsync) { }
         public static System.IObservable<TResult> Create<TResult>(System.Func<System.IObserver<TResult>, System.Threading.CancellationToken, System.Threading.Tasks.Task<System.Action>> subscribeAsync) { }
-        public static System.IObservable<TResult> Create<TResult>(System.Func<System.IObserver<TResult>, System.Threading.Tasks.Task<System.Action>> subscribeAsync) { }
+        public static System.IObservable<TResult> Create<TResult>(System.Func<System.IObserver<TResult>, System.Threading.CancellationToken, System.Threading.Tasks.Task<System.IDisposable>> subscribeAsync) { }
         public static System.IObservable<TSource> DefaultIfEmpty<TSource>(this System.IObservable<TSource> source) { }
         public static System.IObservable<TSource> DefaultIfEmpty<TSource>(this System.IObservable<TSource> source, TSource defaultValue) { }
         public static System.IObservable<TResult> Defer<TResult>(System.Func<System.IObservable<TResult>> observableFactory) { }
         public static System.IObservable<TResult> Defer<TResult>(System.Func<System.Threading.Tasks.Task<System.IObservable<TResult>>> observableFactoryAsync) { }
         public static System.IObservable<TResult> DeferAsync<TResult>(System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task<System.IObservable<TResult>>> observableFactoryAsync) { }
-        public static System.IObservable<TSource> Delay<TSource>(this System.IObservable<TSource> source, System.TimeSpan dueTime) { }
-        public static System.IObservable<TSource> Delay<TSource>(this System.IObservable<TSource> source, System.TimeSpan dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> Delay<TSource>(this System.IObservable<TSource> source, System.DateTimeOffset dueTime) { }
+        public static System.IObservable<TSource> Delay<TSource>(this System.IObservable<TSource> source, System.TimeSpan dueTime) { }
         public static System.IObservable<TSource> Delay<TSource>(this System.IObservable<TSource> source, System.DateTimeOffset dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TSource> Delay<TSource>(this System.IObservable<TSource> source, System.TimeSpan dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> Delay<TSource, TDelay>(this System.IObservable<TSource> source, System.Func<TSource, System.IObservable<TDelay>> delayDurationSelector) { }
         public static System.IObservable<TSource> Delay<TSource, TDelay>(this System.IObservable<TSource> source, System.IObservable<TDelay> subscriptionDelay, System.Func<TSource, System.IObservable<TDelay>> delayDurationSelector) { }
-        public static System.IObservable<TSource> DelaySubscription<TSource>(this System.IObservable<TSource> source, System.TimeSpan dueTime) { }
-        public static System.IObservable<TSource> DelaySubscription<TSource>(this System.IObservable<TSource> source, System.TimeSpan dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> DelaySubscription<TSource>(this System.IObservable<TSource> source, System.DateTimeOffset dueTime) { }
+        public static System.IObservable<TSource> DelaySubscription<TSource>(this System.IObservable<TSource> source, System.TimeSpan dueTime) { }
         public static System.IObservable<TSource> DelaySubscription<TSource>(this System.IObservable<TSource> source, System.DateTimeOffset dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TSource> DelaySubscription<TSource>(this System.IObservable<TSource> source, System.TimeSpan dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> Dematerialize<TSource>(this System.IObservable<System.Reactive.Notification<TSource>> source) { }
         public static System.IObservable<TSource> Distinct<TSource>(this System.IObservable<TSource> source) { }
         public static System.IObservable<TSource> Distinct<TSource>(this System.IObservable<TSource> source, System.Collections.Generic.IEqualityComparer<TSource> comparer) { }
@@ -1001,16 +1004,16 @@ public class static Observable
         public static System.IObservable<TSource> DistinctUntilChanged<TSource, TKey>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector) { }
         public static System.IObservable<TSource> DistinctUntilChanged<TSource, TKey>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
         public static System.IObservable<TSource> Do<TSource>(this System.IObservable<TSource> source, System.Action<TSource> onNext) { }
+        public static System.IObservable<TSource> Do<TSource>(this System.IObservable<TSource> source, System.IObserver<TSource> observer) { }
         public static System.IObservable<TSource> Do<TSource>(this System.IObservable<TSource> source, System.Action<TSource> onNext, System.Action onCompleted) { }
         public static System.IObservable<TSource> Do<TSource>(this System.IObservable<TSource> source, System.Action<TSource> onNext, System.Action<System.Exception> onError) { }
         public static System.IObservable<TSource> Do<TSource>(this System.IObservable<TSource> source, System.Action<TSource> onNext, System.Action<System.Exception> onError, System.Action onCompleted) { }
-        public static System.IObservable<TSource> Do<TSource>(this System.IObservable<TSource> source, System.IObserver<TSource> observer) { }
         public static System.IObservable<TSource> DoWhile<TSource>(this System.IObservable<TSource> source, System.Func<bool> condition) { }
         public static System.IObservable<TSource> ElementAt<TSource>(this System.IObservable<TSource> source, int index) { }
         public static System.IObservable<TSource> ElementAtOrDefault<TSource>(this System.IObservable<TSource> source, int index) { }
         public static System.IObservable<TResult> Empty<TResult>() { }
-        public static System.IObservable<TResult> Empty<TResult>(TResult witness) { }
         public static System.IObservable<TResult> Empty<TResult>(System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TResult> Empty<TResult>(TResult witness) { }
         public static System.IObservable<TResult> Empty<TResult>(System.Reactive.Concurrency.IScheduler scheduler, TResult witness) { }
         public static System.IObservable<TSource> Finally<TSource>(this System.IObservable<TSource> source, System.Action finallyAction) { }
         [System.Obsolete(@"This blocking operation is no longer supported. Instead, use the async version in combination with C# and Visual Basic async/await support. In case you need a blocking operation, use Wait or convert the resulting observable sequence to a Task object and block.")]
@@ -1031,135 +1034,135 @@ public class static Observable
         [System.Obsolete(@"This blocking operation is no longer supported. Instead, use the async version in combination with C# and Visual Basic async/await support. In case you need a blocking operation, use Wait or convert the resulting observable sequence to a Task object and block.")]
         public static void ForEach<TSource>(this System.IObservable<TSource> source, System.Action<TSource, int> onNext) { }
         public static System.Threading.Tasks.Task ForEachAsync<TSource>(this System.IObservable<TSource> source, System.Action<TSource> onNext) { }
-        public static System.Threading.Tasks.Task ForEachAsync<TSource>(this System.IObservable<TSource> source, System.Action<TSource> onNext, System.Threading.CancellationToken cancellationToken) { }
         public static System.Threading.Tasks.Task ForEachAsync<TSource>(this System.IObservable<TSource> source, System.Action<TSource, int> onNext) { }
+        public static System.Threading.Tasks.Task ForEachAsync<TSource>(this System.IObservable<TSource> source, System.Action<TSource> onNext, System.Threading.CancellationToken cancellationToken) { }
         public static System.Threading.Tasks.Task ForEachAsync<TSource>(this System.IObservable<TSource> source, System.Action<TSource, int> onNext, System.Threading.CancellationToken cancellationToken) { }
-        public static System.IObservable<TResult> FromAsync<TResult>(System.Func<System.Threading.Tasks.Task<TResult>> functionAsync) { }
-        public static System.IObservable<TResult> FromAsync<TResult>(System.Func<System.Threading.Tasks.Task<TResult>> functionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<TResult> FromAsync<TResult>(System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>> functionAsync) { }
-        public static System.IObservable<TResult> FromAsync<TResult>(System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>> functionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<System.Reactive.Unit> FromAsync(System.Func<System.Threading.Tasks.Task> actionAsync) { }
-        public static System.IObservable<System.Reactive.Unit> FromAsync(System.Func<System.Threading.Tasks.Task> actionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<System.Reactive.Unit> FromAsync(System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task> actionAsync) { }
+        public static System.IObservable<System.Reactive.Unit> FromAsync(System.Func<System.Threading.Tasks.Task> actionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<System.Reactive.Unit> FromAsync(System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task> actionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
-        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
-        public static System.Func<System.IObservable<TResult>> FromAsyncPattern<TResult>(System.Func<System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
-        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
-        public static System.Func<TArg1, System.IObservable<TResult>> FromAsyncPattern<TArg1, TResult>(System.Func<TArg1, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
-        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
-        public static System.Func<TArg1, TArg2, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TResult>(System.Func<TArg1, TArg2, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
-        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
-        public static System.Func<TArg1, TArg2, TArg3, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TResult>(System.Func<TArg1, TArg2, TArg3, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
-        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
-        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
-        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
-        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
-        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
-        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
-        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
-        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
-        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
-        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
-        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
+        public static System.IObservable<TResult> FromAsync<TResult>(System.Func<System.Threading.Tasks.Task<TResult>> functionAsync) { }
+        public static System.IObservable<TResult> FromAsync<TResult>(System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>> functionAsync) { }
+        public static System.IObservable<TResult> FromAsync<TResult>(System.Func<System.Threading.Tasks.Task<TResult>> functionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TResult> FromAsync<TResult>(System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>> functionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
         [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
         public static System.Func<System.IObservable<System.Reactive.Unit>> FromAsyncPattern(System.Func<System.AsyncCallback, object, System.IAsyncResult> begin, System.Action<System.IAsyncResult> end) { }
         [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
+        public static System.Func<System.IObservable<TResult>> FromAsyncPattern<TResult>(System.Func<System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
+        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
         public static System.Func<TArg1, System.IObservable<System.Reactive.Unit>> FromAsyncPattern<TArg1>(System.Func<TArg1, System.AsyncCallback, object, System.IAsyncResult> begin, System.Action<System.IAsyncResult> end) { }
         [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
+        public static System.Func<TArg1, System.IObservable<TResult>> FromAsyncPattern<TArg1, TResult>(System.Func<TArg1, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
+        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
         public static System.Func<TArg1, TArg2, System.IObservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2>(System.Func<TArg1, TArg2, System.AsyncCallback, object, System.IAsyncResult> begin, System.Action<System.IAsyncResult> end) { }
         [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
+        public static System.Func<TArg1, TArg2, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TResult>(System.Func<TArg1, TArg2, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
+        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
         public static System.Func<TArg1, TArg2, TArg3, System.IObservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3>(System.Func<TArg1, TArg2, TArg3, System.AsyncCallback, object, System.IAsyncResult> begin, System.Action<System.IAsyncResult> end) { }
         [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
+        public static System.Func<TArg1, TArg2, TArg3, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TResult>(System.Func<TArg1, TArg2, TArg3, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
+        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
         public static System.Func<TArg1, TArg2, TArg3, TArg4, System.IObservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4>(System.Func<TArg1, TArg2, TArg3, TArg4, System.AsyncCallback, object, System.IAsyncResult> begin, System.Action<System.IAsyncResult> end) { }
         [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
+        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.IObservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.AsyncCallback, object, System.IAsyncResult> begin, System.Action<System.IAsyncResult> end) { }
         [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
+        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.IObservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.AsyncCallback, object, System.IAsyncResult> begin, System.Action<System.IAsyncResult> end) { }
         [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.IObservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.AsyncCallback, object, System.IAsyncResult> begin, System.Action<System.IAsyncResult> end) { }
         [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
+        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
+        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.IObservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.AsyncCallback, object, System.IAsyncResult> begin, System.Action<System.IAsyncResult> end) { }
         [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
+        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.IObservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.AsyncCallback, object, System.IAsyncResult> begin, System.Action<System.IAsyncResult> end) { }
         [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
+        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.IObservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.AsyncCallback, object, System.IAsyncResult> begin, System.Action<System.IAsyncResult> end) { }
         [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
+        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.IObservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.AsyncCallback, object, System.IAsyncResult> begin, System.Action<System.IAsyncResult> end) { }
         [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
+        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.IObservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.AsyncCallback, object, System.IAsyncResult> begin, System.Action<System.IAsyncResult> end) { }
         [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
+        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.IObservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.AsyncCallback, object, System.IAsyncResult> begin, System.Action<System.IAsyncResult> end) { }
         [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
+        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.IObservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.AsyncCallback, object, System.IAsyncResult> begin, System.Action<System.IAsyncResult> end) { }
-        public static System.IObservable<TEventArgs> FromEvent<TDelegate, TEventArgs>(System.Func<System.Action<TEventArgs>, TDelegate> conversion, System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler) { }
-        public static System.IObservable<TEventArgs> FromEvent<TDelegate, TEventArgs>(System.Func<System.Action<TEventArgs>, TDelegate> conversion, System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<TEventArgs> FromEvent<TDelegate, TEventArgs>(System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler) { }
-        public static System.IObservable<TEventArgs> FromEvent<TDelegate, TEventArgs>(System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<TEventArgs> FromEvent<TEventArgs>(System.Action<System.Action<TEventArgs>> addHandler, System.Action<System.Action<TEventArgs>> removeHandler) { }
-        public static System.IObservable<TEventArgs> FromEvent<TEventArgs>(System.Action<System.Action<TEventArgs>> addHandler, System.Action<System.Action<TEventArgs>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
+        [System.Obsolete(@"This conversion is no longer supported. Replace use of the Begin/End asynchronous method pair with a new Task-based async method, and convert the result using ToObservable. If no Task-based async method is available, use Task.Factory.FromAsync to obtain a Task object.")]
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.IObservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TResult>(System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.AsyncCallback, object, System.IAsyncResult> begin, System.Func<System.IAsyncResult, TResult> end) { }
         public static System.IObservable<System.Reactive.Unit> FromEvent(System.Action<System.Action> addHandler, System.Action<System.Action> removeHandler) { }
         public static System.IObservable<System.Reactive.Unit> FromEvent(System.Action<System.Action> addHandler, System.Action<System.Action> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<System.Reactive.EventPattern<object>> FromEventPattern(System.Action<System.EventHandler> addHandler, System.Action<System.EventHandler> removeHandler) { }
-        public static System.IObservable<System.Reactive.EventPattern<object>> FromEventPattern(System.Action<System.EventHandler> addHandler, System.Action<System.EventHandler> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TDelegate, TEventArgs>(System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler) { }
-        public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TDelegate, TEventArgs>(System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TDelegate, TEventArgs>(System.Func<System.EventHandler<TEventArgs>, TDelegate> conversion, System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler) { }
-        public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TDelegate, TEventArgs>(System.Func<System.EventHandler<TEventArgs>, TDelegate> conversion, System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TDelegate, TSender, TEventArgs>(System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler) { }
-        public static System.IObservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TDelegate, TSender, TEventArgs>(System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(System.Action<System.EventHandler<TEventArgs>> addHandler, System.Action<System.EventHandler<TEventArgs>> removeHandler) { }
-        public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(System.Action<System.EventHandler<TEventArgs>> addHandler, System.Action<System.EventHandler<TEventArgs>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TEventArgs> FromEvent<TEventArgs>(System.Action<System.Action<TEventArgs>> addHandler, System.Action<System.Action<TEventArgs>> removeHandler) { }
+        public static System.IObservable<TEventArgs> FromEvent<TEventArgs>(System.Action<System.Action<TEventArgs>> addHandler, System.Action<System.Action<TEventArgs>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TEventArgs> FromEvent<TDelegate, TEventArgs>(System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler) { }
+        public static System.IObservable<TEventArgs> FromEvent<TDelegate, TEventArgs>(System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TEventArgs> FromEvent<TDelegate, TEventArgs>(System.Func<System.Action<TEventArgs>, TDelegate> conversion, System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler) { }
+        public static System.IObservable<TEventArgs> FromEvent<TDelegate, TEventArgs>(System.Func<System.Action<TEventArgs>, TDelegate> conversion, System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<System.Reactive.EventPattern<object>> FromEventPattern(System.Action<System.EventHandler> addHandler, System.Action<System.EventHandler> removeHandler) { }
         public static System.IObservable<System.Reactive.EventPattern<object>> FromEventPattern(object target, string eventName) { }
-        public static System.IObservable<System.Reactive.EventPattern<object>> FromEventPattern(object target, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(object target, string eventName) { }
-        public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(object target, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TSender, TEventArgs>(object target, string eventName) { }
-        public static System.IObservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TSender, TEventArgs>(object target, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<System.Reactive.EventPattern<object>> FromEventPattern(System.Type type, string eventName) { }
+        public static System.IObservable<System.Reactive.EventPattern<object>> FromEventPattern(System.Action<System.EventHandler> addHandler, System.Action<System.EventHandler> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<System.Reactive.EventPattern<object>> FromEventPattern(object target, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<System.Reactive.EventPattern<object>> FromEventPattern(System.Type type, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(System.Action<System.EventHandler<TEventArgs>> addHandler, System.Action<System.EventHandler<TEventArgs>> removeHandler) { }
+        public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(object target, string eventName) { }
         public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(System.Type type, string eventName) { }
+        public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(System.Action<System.EventHandler<TEventArgs>> addHandler, System.Action<System.EventHandler<TEventArgs>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(object target, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(System.Type type, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TDelegate, TEventArgs>(System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler) { }
+        public static System.IObservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TSender, TEventArgs>(object target, string eventName) { }
         public static System.IObservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TSender, TEventArgs>(System.Type type, string eventName) { }
+        public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TDelegate, TEventArgs>(System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TDelegate, TEventArgs>(System.Func<System.EventHandler<TEventArgs>, TDelegate> conversion, System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler) { }
+        public static System.IObservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TSender, TEventArgs>(object target, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TSender, TEventArgs>(System.Type type, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TDelegate, TEventArgs>(System.Func<System.EventHandler<TEventArgs>, TDelegate> conversion, System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TDelegate, TSender, TEventArgs>(System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler) { }
+        public static System.IObservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TDelegate, TSender, TEventArgs>(System.Action<TDelegate> addHandler, System.Action<TDelegate> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TResult> Generate<TState, TResult>(TState initialState, System.Func<TState, bool> condition, System.Func<TState, TState> iterate, System.Func<TState, TResult> resultSelector) { }
-        public static System.IObservable<TResult> Generate<TState, TResult>(TState initialState, System.Func<TState, bool> condition, System.Func<TState, TState> iterate, System.Func<TState, TResult> resultSelector, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<TResult> Generate<TState, TResult>(TState initialState, System.Func<TState, bool> condition, System.Func<TState, TState> iterate, System.Func<TState, TResult> resultSelector, System.Func<TState, System.TimeSpan> timeSelector) { }
-        public static System.IObservable<TResult> Generate<TState, TResult>(TState initialState, System.Func<TState, bool> condition, System.Func<TState, TState> iterate, System.Func<TState, TResult> resultSelector, System.Func<TState, System.TimeSpan> timeSelector, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TResult> Generate<TState, TResult>(TState initialState, System.Func<TState, bool> condition, System.Func<TState, TState> iterate, System.Func<TState, TResult> resultSelector, System.Func<TState, System.DateTimeOffset> timeSelector) { }
+        public static System.IObservable<TResult> Generate<TState, TResult>(TState initialState, System.Func<TState, bool> condition, System.Func<TState, TState> iterate, System.Func<TState, TResult> resultSelector, System.Func<TState, System.TimeSpan> timeSelector) { }
+        public static System.IObservable<TResult> Generate<TState, TResult>(TState initialState, System.Func<TState, bool> condition, System.Func<TState, TState> iterate, System.Func<TState, TResult> resultSelector, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TResult> Generate<TState, TResult>(TState initialState, System.Func<TState, bool> condition, System.Func<TState, TState> iterate, System.Func<TState, TResult> resultSelector, System.Func<TState, System.DateTimeOffset> timeSelector, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TResult> Generate<TState, TResult>(TState initialState, System.Func<TState, bool> condition, System.Func<TState, TState> iterate, System.Func<TState, TResult> resultSelector, System.Func<TState, System.TimeSpan> timeSelector, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Subjects.AsyncSubject<TSource> GetAwaiter<TSource>(this System.IObservable<TSource> source) { }
         public static System.Reactive.Subjects.AsyncSubject<TSource> GetAwaiter<TSource>(this System.Reactive.Subjects.IConnectableObservable<TSource> source) { }
         public static System.Collections.Generic.IEnumerator<TSource> GetEnumerator<TSource>(this System.IObservable<TSource> source) { }
         public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupBy<TSource, TKey>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector) { }
         public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupBy<TSource, TKey>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
-        public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupBy<TSource, TKey, TElement>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<TSource, TElement> elementSelector) { }
-        public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupBy<TSource, TKey, TElement>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<TSource, TElement> elementSelector, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
         public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupBy<TSource, TKey>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, int capacity) { }
         public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupBy<TSource, TKey>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, int capacity, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
+        public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupBy<TSource, TKey, TElement>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<TSource, TElement> elementSelector) { }
+        public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupBy<TSource, TKey, TElement>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<TSource, TElement> elementSelector, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
         public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupBy<TSource, TKey, TElement>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<TSource, TElement> elementSelector, int capacity) { }
         public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupBy<TSource, TKey, TElement>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<TSource, TElement> elementSelector, int capacity, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
-        public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupByUntil<TSource, TKey, TElement, TDuration>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<TSource, TElement> elementSelector, System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TElement>, System.IObservable<TDuration>> durationSelector, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
-        public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupByUntil<TSource, TKey, TElement, TDuration>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<TSource, TElement> elementSelector, System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TElement>, System.IObservable<TDuration>> durationSelector) { }
-        public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupByUntil<TSource, TKey, TDuration>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TSource>, System.IObservable<TDuration>> durationSelector, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
         public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupByUntil<TSource, TKey, TDuration>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TSource>, System.IObservable<TDuration>> durationSelector) { }
-        public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupByUntil<TSource, TKey, TElement, TDuration>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<TSource, TElement> elementSelector, System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TElement>, System.IObservable<TDuration>> durationSelector, int capacity, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
-        public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupByUntil<TSource, TKey, TElement, TDuration>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<TSource, TElement> elementSelector, System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TElement>, System.IObservable<TDuration>> durationSelector, int capacity) { }
-        public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupByUntil<TSource, TKey, TDuration>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TSource>, System.IObservable<TDuration>> durationSelector, int capacity, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
+        public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupByUntil<TSource, TKey, TDuration>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TSource>, System.IObservable<TDuration>> durationSelector, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
         public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupByUntil<TSource, TKey, TDuration>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TSource>, System.IObservable<TDuration>> durationSelector, int capacity) { }
+        public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupByUntil<TSource, TKey, TDuration>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TSource>, System.IObservable<TDuration>> durationSelector, int capacity, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
+        public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupByUntil<TSource, TKey, TElement, TDuration>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<TSource, TElement> elementSelector, System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TElement>, System.IObservable<TDuration>> durationSelector) { }
+        public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupByUntil<TSource, TKey, TElement, TDuration>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<TSource, TElement> elementSelector, System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TElement>, System.IObservable<TDuration>> durationSelector, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
+        public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupByUntil<TSource, TKey, TElement, TDuration>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<TSource, TElement> elementSelector, System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TElement>, System.IObservable<TDuration>> durationSelector, int capacity) { }
+        public static System.IObservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupByUntil<TSource, TKey, TElement, TDuration>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<TSource, TElement> elementSelector, System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TElement>, System.IObservable<TDuration>> durationSelector, int capacity, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
         public static System.IObservable<TResult> GroupJoin<TLeft, TRight, TLeftDuration, TRightDuration, TResult>(this System.IObservable<TLeft> left, System.IObservable<TRight> right, System.Func<TLeft, System.IObservable<TLeftDuration>> leftDurationSelector, System.Func<TRight, System.IObservable<TRightDuration>> rightDurationSelector, System.Func<TLeft, System.IObservable<TRight>, TResult> resultSelector) { }
-        public static System.IObservable<TResult> If<TResult>(System.Func<bool> condition, System.IObservable<TResult> thenSource, System.IObservable<TResult> elseSource) { }
         public static System.IObservable<TResult> If<TResult>(System.Func<bool> condition, System.IObservable<TResult> thenSource) { }
+        public static System.IObservable<TResult> If<TResult>(System.Func<bool> condition, System.IObservable<TResult> thenSource, System.IObservable<TResult> elseSource) { }
         public static System.IObservable<TResult> If<TResult>(System.Func<bool> condition, System.IObservable<TResult> thenSource, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> IgnoreElements<TSource>(this System.IObservable<TSource> source) { }
         public static System.IObservable<long> Interval(System.TimeSpan period) { }
@@ -1182,67 +1185,67 @@ public class static Observable
         public static System.IObservable<long> LongCount<TSource>(this System.IObservable<TSource> source) { }
         public static System.IObservable<long> LongCount<TSource>(this System.IObservable<TSource> source, System.Func<TSource, bool> predicate) { }
         public static System.IObservable<System.Reactive.Notification<TSource>> Materialize<TSource>(this System.IObservable<TSource> source) { }
-        public static System.IObservable<TSource> Max<TSource>(this System.IObservable<TSource> source) { }
-        public static System.IObservable<TSource> Max<TSource>(this System.IObservable<TSource> source, System.Collections.Generic.IComparer<TSource> comparer) { }
-        public static System.IObservable<double> Max(this System.IObservable<double> source) { }
-        public static System.IObservable<float> Max(this System.IObservable<float> source) { }
         public static System.IObservable<decimal> Max(this System.IObservable<decimal> source) { }
+        public static System.IObservable<double> Max(this System.IObservable<double> source) { }
         public static System.IObservable<int> Max(this System.IObservable<int> source) { }
         public static System.IObservable<long> Max(this System.IObservable<long> source) { }
-        public static System.IObservable<System.Nullable<double>> Max(this System.IObservable<System.Nullable<double>> source) { }
-        public static System.IObservable<System.Nullable<float>> Max(this System.IObservable<System.Nullable<float>> source) { }
-        public static System.IObservable<System.Nullable<decimal>> Max(this System.IObservable<System.Nullable<decimal>> source) { }
-        public static System.IObservable<System.Nullable<int>> Max(this System.IObservable<System.Nullable<int>> source) { }
-        public static System.IObservable<System.Nullable<long>> Max(this System.IObservable<System.Nullable<long>> source) { }
-        public static System.IObservable<TResult> Max<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, TResult> selector) { }
-        public static System.IObservable<TResult> Max<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, TResult> selector, System.Collections.Generic.IComparer<TResult> comparer) { }
-        public static System.IObservable<double> Max<TSource>(this System.IObservable<TSource> source, System.Func<TSource, double> selector) { }
-        public static System.IObservable<float> Max<TSource>(this System.IObservable<TSource> source, System.Func<TSource, float> selector) { }
+        public static System.IObservable<float> Max(this System.IObservable<float> source) { }
+        public static System.IObservable<decimal?> Max(this System.IObservable<decimal?> source) { }
+        public static System.IObservable<double?> Max(this System.IObservable<double?> source) { }
+        public static System.IObservable<float?> Max(this System.IObservable<float?> source) { }
+        public static System.IObservable<int?> Max(this System.IObservable<int?> source) { }
+        public static System.IObservable<long?> Max(this System.IObservable<long?> source) { }
+        public static System.IObservable<TSource> Max<TSource>(this System.IObservable<TSource> source) { }
+        public static System.IObservable<TSource> Max<TSource>(this System.IObservable<TSource> source, System.Collections.Generic.IComparer<TSource> comparer) { }
         public static System.IObservable<decimal> Max<TSource>(this System.IObservable<TSource> source, System.Func<TSource, decimal> selector) { }
+        public static System.IObservable<double> Max<TSource>(this System.IObservable<TSource> source, System.Func<TSource, double> selector) { }
         public static System.IObservable<int> Max<TSource>(this System.IObservable<TSource> source, System.Func<TSource, int> selector) { }
         public static System.IObservable<long> Max<TSource>(this System.IObservable<TSource> source, System.Func<TSource, long> selector) { }
-        public static System.IObservable<System.Nullable<double>> Max<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<double>> selector) { }
-        public static System.IObservable<System.Nullable<float>> Max<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<float>> selector) { }
-        public static System.IObservable<System.Nullable<decimal>> Max<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<decimal>> selector) { }
-        public static System.IObservable<System.Nullable<int>> Max<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<int>> selector) { }
-        public static System.IObservable<System.Nullable<long>> Max<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<long>> selector) { }
+        public static System.IObservable<float> Max<TSource>(this System.IObservable<TSource> source, System.Func<TSource, float> selector) { }
+        public static System.IObservable<decimal?> Max<TSource>(this System.IObservable<TSource> source, System.Func<TSource, decimal?> selector) { }
+        public static System.IObservable<double?> Max<TSource>(this System.IObservable<TSource> source, System.Func<TSource, double?> selector) { }
+        public static System.IObservable<float?> Max<TSource>(this System.IObservable<TSource> source, System.Func<TSource, float?> selector) { }
+        public static System.IObservable<int?> Max<TSource>(this System.IObservable<TSource> source, System.Func<TSource, int?> selector) { }
+        public static System.IObservable<long?> Max<TSource>(this System.IObservable<TSource> source, System.Func<TSource, long?> selector) { }
+        public static System.IObservable<TResult> Max<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, TResult> selector) { }
+        public static System.IObservable<TResult> Max<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, TResult> selector, System.Collections.Generic.IComparer<TResult> comparer) { }
         public static System.IObservable<System.Collections.Generic.IList<TSource>> MaxBy<TSource, TKey>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector) { }
         public static System.IObservable<System.Collections.Generic.IList<TSource>> MaxBy<TSource, TKey>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Collections.Generic.IComparer<TKey> comparer) { }
+        public static System.IObservable<TSource> Merge<TSource>(params System.IObservable<>[] sources) { }
+        public static System.IObservable<TSource> Merge<TSource>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
         public static System.IObservable<TSource> Merge<TSource>(this System.IObservable<System.IObservable<TSource>> sources) { }
         public static System.IObservable<TSource> Merge<TSource>(this System.IObservable<System.Threading.Tasks.Task<TSource>> sources) { }
-        public static System.IObservable<TSource> Merge<TSource>(this System.IObservable<System.IObservable<TSource>> sources, int maxConcurrent) { }
+        public static System.IObservable<TSource> Merge<TSource>(System.Reactive.Concurrency.IScheduler scheduler, params System.IObservable<>[] sources) { }
         public static System.IObservable<TSource> Merge<TSource>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources, int maxConcurrent) { }
-        public static System.IObservable<TSource> Merge<TSource>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources, int maxConcurrent, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TSource> Merge<TSource>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TSource> Merge<TSource>(this System.IObservable<System.IObservable<TSource>> sources, int maxConcurrent) { }
         public static System.IObservable<TSource> Merge<TSource>(this System.IObservable<TSource> first, System.IObservable<TSource> second) { }
+        public static System.IObservable<TSource> Merge<TSource>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources, int maxConcurrent, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> Merge<TSource>(this System.IObservable<TSource> first, System.IObservable<TSource> second, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<TSource> Merge<TSource>(params System.IObservable<>[] sources) { }
-        public static System.IObservable<TSource> Merge<TSource>(System.Reactive.Concurrency.IScheduler scheduler, params System.IObservable<>[] sources) { }
-        public static System.IObservable<TSource> Merge<TSource>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
-        public static System.IObservable<TSource> Merge<TSource>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<TSource> Min<TSource>(this System.IObservable<TSource> source) { }
-        public static System.IObservable<TSource> Min<TSource>(this System.IObservable<TSource> source, System.Collections.Generic.IComparer<TSource> comparer) { }
-        public static System.IObservable<double> Min(this System.IObservable<double> source) { }
-        public static System.IObservable<float> Min(this System.IObservable<float> source) { }
         public static System.IObservable<decimal> Min(this System.IObservable<decimal> source) { }
+        public static System.IObservable<double> Min(this System.IObservable<double> source) { }
         public static System.IObservable<int> Min(this System.IObservable<int> source) { }
         public static System.IObservable<long> Min(this System.IObservable<long> source) { }
-        public static System.IObservable<System.Nullable<double>> Min(this System.IObservable<System.Nullable<double>> source) { }
-        public static System.IObservable<System.Nullable<float>> Min(this System.IObservable<System.Nullable<float>> source) { }
-        public static System.IObservable<System.Nullable<decimal>> Min(this System.IObservable<System.Nullable<decimal>> source) { }
-        public static System.IObservable<System.Nullable<int>> Min(this System.IObservable<System.Nullable<int>> source) { }
-        public static System.IObservable<System.Nullable<long>> Min(this System.IObservable<System.Nullable<long>> source) { }
-        public static System.IObservable<TResult> Min<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, TResult> selector) { }
-        public static System.IObservable<TResult> Min<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, TResult> selector, System.Collections.Generic.IComparer<TResult> comparer) { }
-        public static System.IObservable<double> Min<TSource>(this System.IObservable<TSource> source, System.Func<TSource, double> selector) { }
-        public static System.IObservable<float> Min<TSource>(this System.IObservable<TSource> source, System.Func<TSource, float> selector) { }
+        public static System.IObservable<float> Min(this System.IObservable<float> source) { }
+        public static System.IObservable<decimal?> Min(this System.IObservable<decimal?> source) { }
+        public static System.IObservable<double?> Min(this System.IObservable<double?> source) { }
+        public static System.IObservable<float?> Min(this System.IObservable<float?> source) { }
+        public static System.IObservable<int?> Min(this System.IObservable<int?> source) { }
+        public static System.IObservable<long?> Min(this System.IObservable<long?> source) { }
+        public static System.IObservable<TSource> Min<TSource>(this System.IObservable<TSource> source) { }
+        public static System.IObservable<TSource> Min<TSource>(this System.IObservable<TSource> source, System.Collections.Generic.IComparer<TSource> comparer) { }
         public static System.IObservable<decimal> Min<TSource>(this System.IObservable<TSource> source, System.Func<TSource, decimal> selector) { }
+        public static System.IObservable<double> Min<TSource>(this System.IObservable<TSource> source, System.Func<TSource, double> selector) { }
         public static System.IObservable<int> Min<TSource>(this System.IObservable<TSource> source, System.Func<TSource, int> selector) { }
         public static System.IObservable<long> Min<TSource>(this System.IObservable<TSource> source, System.Func<TSource, long> selector) { }
-        public static System.IObservable<System.Nullable<double>> Min<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<double>> selector) { }
-        public static System.IObservable<System.Nullable<float>> Min<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<float>> selector) { }
-        public static System.IObservable<System.Nullable<decimal>> Min<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<decimal>> selector) { }
-        public static System.IObservable<System.Nullable<int>> Min<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<int>> selector) { }
-        public static System.IObservable<System.Nullable<long>> Min<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<long>> selector) { }
+        public static System.IObservable<float> Min<TSource>(this System.IObservable<TSource> source, System.Func<TSource, float> selector) { }
+        public static System.IObservable<decimal?> Min<TSource>(this System.IObservable<TSource> source, System.Func<TSource, decimal?> selector) { }
+        public static System.IObservable<double?> Min<TSource>(this System.IObservable<TSource> source, System.Func<TSource, double?> selector) { }
+        public static System.IObservable<float?> Min<TSource>(this System.IObservable<TSource> source, System.Func<TSource, float?> selector) { }
+        public static System.IObservable<int?> Min<TSource>(this System.IObservable<TSource> source, System.Func<TSource, int?> selector) { }
+        public static System.IObservable<long?> Min<TSource>(this System.IObservable<TSource> source, System.Func<TSource, long?> selector) { }
+        public static System.IObservable<TResult> Min<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, TResult> selector) { }
+        public static System.IObservable<TResult> Min<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, TResult> selector, System.Collections.Generic.IComparer<TResult> comparer) { }
         public static System.IObservable<System.Collections.Generic.IList<TSource>> MinBy<TSource, TKey>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector) { }
         public static System.IObservable<System.Collections.Generic.IList<TSource>> MinBy<TSource, TKey>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Collections.Generic.IComparer<TKey> comparer) { }
         public static System.Collections.Generic.IEnumerable<TSource> MostRecent<TSource>(this System.IObservable<TSource> source, TSource initialValue) { }
@@ -1254,14 +1257,14 @@ public class static Observable
         public static System.IObservable<TSource> ObserveOn<TSource>(this System.IObservable<TSource> source, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> ObserveOn<TSource>(this System.IObservable<TSource> source, System.Threading.SynchronizationContext context) { }
         public static System.IObservable<TResult> OfType<TResult>(this System.IObservable<object> source) { }
-        public static System.IObservable<TSource> OnErrorResumeNext<TSource>(this System.IObservable<TSource> first, System.IObservable<TSource> second) { }
         public static System.IObservable<TSource> OnErrorResumeNext<TSource>(params System.IObservable<>[] sources) { }
         public static System.IObservable<TSource> OnErrorResumeNext<TSource>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
+        public static System.IObservable<TSource> OnErrorResumeNext<TSource>(this System.IObservable<TSource> first, System.IObservable<TSource> second) { }
         public static System.IObservable<TSource> Prepend<TSource>(this System.IObservable<TSource> source, TSource value) { }
         public static System.IObservable<TSource> Prepend<TSource>(this System.IObservable<TSource> source, TSource value, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Subjects.IConnectableObservable<TSource> Publish<TSource>(this System.IObservable<TSource> source) { }
-        public static System.IObservable<TResult> Publish<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, System.IObservable<TResult>> selector) { }
         public static System.Reactive.Subjects.IConnectableObservable<TSource> Publish<TSource>(this System.IObservable<TSource> source, TSource initialValue) { }
+        public static System.IObservable<TResult> Publish<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, System.IObservable<TResult>> selector) { }
         public static System.IObservable<TResult> Publish<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, System.IObservable<TResult>> selector, TSource initialValue) { }
         public static System.Reactive.Subjects.IConnectableObservable<TSource> PublishLast<TSource>(this System.IObservable<TSource> source) { }
         public static System.IObservable<TResult> PublishLast<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, System.IObservable<TResult>> selector) { }
@@ -1271,27 +1274,27 @@ public class static Observable
         public static System.IObservable<TSource> RefCount<TSource>(this System.Reactive.Subjects.IConnectableObservable<TSource> source, System.TimeSpan disconnectDelay) { }
         public static System.IObservable<TSource> RefCount<TSource>(this System.Reactive.Subjects.IConnectableObservable<TSource> source, System.TimeSpan disconnectDelay, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TResult> Repeat<TResult>(TResult value) { }
-        public static System.IObservable<TResult> Repeat<TResult>(TResult value, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<TResult> Repeat<TResult>(TResult value, int repeatCount) { }
-        public static System.IObservable<TResult> Repeat<TResult>(TResult value, int repeatCount, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> Repeat<TSource>(this System.IObservable<TSource> source) { }
+        public static System.IObservable<TResult> Repeat<TResult>(TResult value, int repeatCount) { }
+        public static System.IObservable<TResult> Repeat<TResult>(TResult value, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> Repeat<TSource>(this System.IObservable<TSource> source, int repeatCount) { }
+        public static System.IObservable<TResult> Repeat<TResult>(TResult value, int repeatCount, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> RepeatWhen<TSource, TSignal>(this System.IObservable<TSource> source, System.Func<System.IObservable<object>, System.IObservable<TSignal>> handler) { }
         public static System.Reactive.Subjects.IConnectableObservable<TSource> Replay<TSource>(this System.IObservable<TSource> source) { }
+        public static System.Reactive.Subjects.IConnectableObservable<TSource> Replay<TSource>(this System.IObservable<TSource> source, int bufferSize) { }
         public static System.Reactive.Subjects.IConnectableObservable<TSource> Replay<TSource>(this System.IObservable<TSource> source, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Subjects.IConnectableObservable<TSource> Replay<TSource>(this System.IObservable<TSource> source, System.TimeSpan window) { }
+        public static System.Reactive.Subjects.IConnectableObservable<TSource> Replay<TSource>(this System.IObservable<TSource> source, int bufferSize, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Subjects.IConnectableObservable<TSource> Replay<TSource>(this System.IObservable<TSource> source, int bufferSize, System.TimeSpan window) { }
+        public static System.Reactive.Subjects.IConnectableObservable<TSource> Replay<TSource>(this System.IObservable<TSource> source, System.TimeSpan window, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Subjects.IConnectableObservable<TSource> Replay<TSource>(this System.IObservable<TSource> source, int bufferSize, System.TimeSpan window, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TResult> Replay<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, System.IObservable<TResult>> selector) { }
+        public static System.IObservable<TResult> Replay<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, System.IObservable<TResult>> selector, int bufferSize) { }
         public static System.IObservable<TResult> Replay<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, System.IObservable<TResult>> selector, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Subjects.IConnectableObservable<TSource> Replay<TSource>(this System.IObservable<TSource> source, System.TimeSpan window) { }
         public static System.IObservable<TResult> Replay<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, System.IObservable<TResult>> selector, System.TimeSpan window) { }
-        public static System.Reactive.Subjects.IConnectableObservable<TSource> Replay<TSource>(this System.IObservable<TSource> source, System.TimeSpan window, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<TResult> Replay<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, System.IObservable<TResult>> selector, System.TimeSpan window, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Subjects.IConnectableObservable<TSource> Replay<TSource>(this System.IObservable<TSource> source, int bufferSize, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TResult> Replay<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, System.IObservable<TResult>> selector, int bufferSize, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Subjects.IConnectableObservable<TSource> Replay<TSource>(this System.IObservable<TSource> source, int bufferSize) { }
-        public static System.IObservable<TResult> Replay<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, System.IObservable<TResult>> selector, int bufferSize) { }
-        public static System.Reactive.Subjects.IConnectableObservable<TSource> Replay<TSource>(this System.IObservable<TSource> source, int bufferSize, System.TimeSpan window) { }
         public static System.IObservable<TResult> Replay<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, System.IObservable<TResult>> selector, int bufferSize, System.TimeSpan window) { }
-        public static System.Reactive.Subjects.IConnectableObservable<TSource> Replay<TSource>(this System.IObservable<TSource> source, int bufferSize, System.TimeSpan window, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TResult> Replay<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, System.IObservable<TResult>> selector, System.TimeSpan window, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TResult> Replay<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, System.IObservable<TResult>> selector, int bufferSize, System.TimeSpan window, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> Retry<TSource>(this System.IObservable<TSource> source) { }
         public static System.IObservable<TSource> Retry<TSource>(this System.IObservable<TSource> source, int retryCount) { }
@@ -1303,33 +1306,33 @@ public class static Observable
         public static System.IObservable<TSource> Sample<TSource>(this System.IObservable<TSource> source, System.TimeSpan interval) { }
         public static System.IObservable<TSource> Sample<TSource>(this System.IObservable<TSource> source, System.TimeSpan interval, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> Sample<TSource, TSample>(this System.IObservable<TSource> source, System.IObservable<TSample> sampler) { }
-        public static System.IObservable<TAccumulate> Scan<TSource, TAccumulate>(this System.IObservable<TSource> source, TAccumulate seed, System.Func<TAccumulate, TSource, TAccumulate> accumulator) { }
         public static System.IObservable<TSource> Scan<TSource>(this System.IObservable<TSource> source, System.Func<TSource, TSource, TSource> accumulator) { }
+        public static System.IObservable<TAccumulate> Scan<TSource, TAccumulate>(this System.IObservable<TSource> source, TAccumulate seed, System.Func<TAccumulate, TSource, TAccumulate> accumulator) { }
         public static System.IObservable<TResult> Select<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, TResult> selector) { }
         public static System.IObservable<TResult> Select<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, TResult> selector) { }
-        public static System.IObservable<TOther> SelectMany<TSource, TOther>(this System.IObservable<TSource> source, System.IObservable<TOther> other) { }
+        public static System.IObservable<TResult> SelectMany<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.Collections.Generic.IEnumerable<TResult>> selector) { }
         public static System.IObservable<TResult> SelectMany<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.IObservable<TResult>> selector) { }
-        public static System.IObservable<TResult> SelectMany<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.IObservable<TResult>> selector) { }
         public static System.IObservable<TResult> SelectMany<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.Threading.Tasks.Task<TResult>> selector) { }
+        public static System.IObservable<TResult> SelectMany<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.Collections.Generic.IEnumerable<TResult>> selector) { }
+        public static System.IObservable<TResult> SelectMany<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.IObservable<TResult>> selector) { }
         public static System.IObservable<TResult> SelectMany<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.Threading.Tasks.Task<TResult>> selector) { }
         public static System.IObservable<TResult> SelectMany<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>> selector) { }
         public static System.IObservable<TResult> SelectMany<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>> selector) { }
+        public static System.IObservable<TOther> SelectMany<TSource, TOther>(this System.IObservable<TSource> source, System.IObservable<TOther> other) { }
+        public static System.IObservable<TResult> SelectMany<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.IObservable<TResult>> onNext, System.Func<System.Exception, System.IObservable<TResult>> onError, System.Func<System.IObservable<TResult>> onCompleted) { }
+        public static System.IObservable<TResult> SelectMany<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.IObservable<TResult>> onNext, System.Func<System.Exception, System.IObservable<TResult>> onError, System.Func<System.IObservable<TResult>> onCompleted) { }
+        public static System.IObservable<TResult> SelectMany<TSource, TCollection, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.Collections.Generic.IEnumerable<TCollection>> collectionSelector, System.Func<TSource, TCollection, TResult> resultSelector) { }
         public static System.IObservable<TResult> SelectMany<TSource, TCollection, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.IObservable<TCollection>> collectionSelector, System.Func<TSource, TCollection, TResult> resultSelector) { }
-        public static System.IObservable<TResult> SelectMany<TSource, TCollection, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.IObservable<TCollection>> collectionSelector, System.Func<TSource, int, TCollection, int, TResult> resultSelector) { }
         public static System.IObservable<TResult> SelectMany<TSource, TTaskResult, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.Threading.Tasks.Task<TTaskResult>> taskSelector, System.Func<TSource, TTaskResult, TResult> resultSelector) { }
+        public static System.IObservable<TResult> SelectMany<TSource, TCollection, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.Collections.Generic.IEnumerable<TCollection>> collectionSelector, System.Func<TSource, int, TCollection, int, TResult> resultSelector) { }
+        public static System.IObservable<TResult> SelectMany<TSource, TCollection, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.IObservable<TCollection>> collectionSelector, System.Func<TSource, int, TCollection, int, TResult> resultSelector) { }
         public static System.IObservable<TResult> SelectMany<TSource, TTaskResult, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.Threading.Tasks.Task<TTaskResult>> taskSelector, System.Func<TSource, int, TTaskResult, TResult> resultSelector) { }
         public static System.IObservable<TResult> SelectMany<TSource, TTaskResult, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.Threading.CancellationToken, System.Threading.Tasks.Task<TTaskResult>> taskSelector, System.Func<TSource, TTaskResult, TResult> resultSelector) { }
         public static System.IObservable<TResult> SelectMany<TSource, TTaskResult, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.Threading.CancellationToken, System.Threading.Tasks.Task<TTaskResult>> taskSelector, System.Func<TSource, int, TTaskResult, TResult> resultSelector) { }
-        public static System.IObservable<TResult> SelectMany<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.IObservable<TResult>> onNext, System.Func<System.Exception, System.IObservable<TResult>> onError, System.Func<System.IObservable<TResult>> onCompleted) { }
-        public static System.IObservable<TResult> SelectMany<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.IObservable<TResult>> onNext, System.Func<System.Exception, System.IObservable<TResult>> onError, System.Func<System.IObservable<TResult>> onCompleted) { }
-        public static System.IObservable<TResult> SelectMany<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.Collections.Generic.IEnumerable<TResult>> selector) { }
-        public static System.IObservable<TResult> SelectMany<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.Collections.Generic.IEnumerable<TResult>> selector) { }
-        public static System.IObservable<TResult> SelectMany<TSource, TCollection, TResult>(this System.IObservable<TSource> source, System.Func<TSource, System.Collections.Generic.IEnumerable<TCollection>> collectionSelector, System.Func<TSource, TCollection, TResult> resultSelector) { }
-        public static System.IObservable<TResult> SelectMany<TSource, TCollection, TResult>(this System.IObservable<TSource> source, System.Func<TSource, int, System.Collections.Generic.IEnumerable<TCollection>> collectionSelector, System.Func<TSource, int, TCollection, int, TResult> resultSelector) { }
-        public static System.IObservable<bool> SequenceEqual<TSource>(this System.IObservable<TSource> first, System.IObservable<TSource> second) { }
-        public static System.IObservable<bool> SequenceEqual<TSource>(this System.IObservable<TSource> first, System.IObservable<TSource> second, System.Collections.Generic.IEqualityComparer<TSource> comparer) { }
         public static System.IObservable<bool> SequenceEqual<TSource>(this System.IObservable<TSource> first, System.Collections.Generic.IEnumerable<TSource> second) { }
+        public static System.IObservable<bool> SequenceEqual<TSource>(this System.IObservable<TSource> first, System.IObservable<TSource> second) { }
         public static System.IObservable<bool> SequenceEqual<TSource>(this System.IObservable<TSource> first, System.Collections.Generic.IEnumerable<TSource> second, System.Collections.Generic.IEqualityComparer<TSource> comparer) { }
+        public static System.IObservable<bool> SequenceEqual<TSource>(this System.IObservable<TSource> first, System.IObservable<TSource> second, System.Collections.Generic.IEqualityComparer<TSource> comparer) { }
         [System.Obsolete(@"This blocking operation is no longer supported. Instead, use the async version in combination with C# and Visual Basic async/await support. In case you need a blocking operation, use Wait or convert the resulting observable sequence to a Task object and block.")]
         public static TSource Single<TSource>(this System.IObservable<TSource> source) { }
         [System.Obsolete(@"This blocking operation is no longer supported. Instead, use the async version in combination with C# and Visual Basic async/await support. In case you need a blocking operation, use Wait or convert the resulting observable sequence to a Task object and block.")]
@@ -1348,71 +1351,71 @@ public class static Observable
         public static System.IObservable<TSource> SkipLast<TSource>(this System.IObservable<TSource> source, int count) { }
         public static System.IObservable<TSource> SkipLast<TSource>(this System.IObservable<TSource> source, System.TimeSpan duration) { }
         public static System.IObservable<TSource> SkipLast<TSource>(this System.IObservable<TSource> source, System.TimeSpan duration, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<TSource> SkipUntil<TSource, TOther>(this System.IObservable<TSource> source, System.IObservable<TOther> other) { }
         public static System.IObservable<TSource> SkipUntil<TSource>(this System.IObservable<TSource> source, System.DateTimeOffset startTime) { }
         public static System.IObservable<TSource> SkipUntil<TSource>(this System.IObservable<TSource> source, System.DateTimeOffset startTime, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TSource> SkipUntil<TSource, TOther>(this System.IObservable<TSource> source, System.IObservable<TOther> other) { }
         public static System.IObservable<TSource> SkipWhile<TSource>(this System.IObservable<TSource> source, System.Func<TSource, bool> predicate) { }
         public static System.IObservable<TSource> SkipWhile<TSource>(this System.IObservable<TSource> source, System.Func<TSource, int, bool> predicate) { }
-        public static System.IObservable<TResult> Start<TResult>(System.Func<TResult> function) { }
-        public static System.IObservable<TResult> Start<TResult>(System.Func<TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<System.Reactive.Unit> Start(System.Action action) { }
         public static System.IObservable<System.Reactive.Unit> Start(System.Action action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<TResult> StartAsync<TResult>(System.Func<System.Threading.Tasks.Task<TResult>> functionAsync) { }
-        public static System.IObservable<TResult> StartAsync<TResult>(System.Func<System.Threading.Tasks.Task<TResult>> functionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<TResult> StartAsync<TResult>(System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>> functionAsync) { }
-        public static System.IObservable<TResult> StartAsync<TResult>(System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>> functionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TResult> Start<TResult>(System.Func<TResult> function) { }
+        public static System.IObservable<TResult> Start<TResult>(System.Func<TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<System.Reactive.Unit> StartAsync(System.Func<System.Threading.Tasks.Task> actionAsync) { }
-        public static System.IObservable<System.Reactive.Unit> StartAsync(System.Func<System.Threading.Tasks.Task> actionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<System.Reactive.Unit> StartAsync(System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task> actionAsync) { }
+        public static System.IObservable<System.Reactive.Unit> StartAsync(System.Func<System.Threading.Tasks.Task> actionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<System.Reactive.Unit> StartAsync(System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task> actionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<TSource> StartWith<TSource>(this System.IObservable<TSource> source, params TSource[] values) { }
+        public static System.IObservable<TResult> StartAsync<TResult>(System.Func<System.Threading.Tasks.Task<TResult>> functionAsync) { }
+        public static System.IObservable<TResult> StartAsync<TResult>(System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>> functionAsync) { }
+        public static System.IObservable<TResult> StartAsync<TResult>(System.Func<System.Threading.Tasks.Task<TResult>> functionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TResult> StartAsync<TResult>(System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>> functionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> StartWith<TSource>(this System.IObservable<TSource> source, System.Collections.Generic.IEnumerable<TSource> values) { }
-        public static System.IObservable<TSource> StartWith<TSource>(this System.IObservable<TSource> source, System.Reactive.Concurrency.IScheduler scheduler, params TSource[] values) { }
+        public static System.IObservable<TSource> StartWith<TSource>(this System.IObservable<TSource> source, params TSource[] values) { }
         public static System.IObservable<TSource> StartWith<TSource>(this System.IObservable<TSource> source, System.Reactive.Concurrency.IScheduler scheduler, System.Collections.Generic.IEnumerable<TSource> values) { }
+        public static System.IObservable<TSource> StartWith<TSource>(this System.IObservable<TSource> source, System.Reactive.Concurrency.IScheduler scheduler, params TSource[] values) { }
         public static System.IDisposable Subscribe<TSource>(this System.Collections.Generic.IEnumerable<TSource> source, System.IObserver<TSource> observer) { }
         public static System.IDisposable Subscribe<TSource>(this System.Collections.Generic.IEnumerable<TSource> source, System.IObserver<TSource> observer, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> SubscribeOn<TSource>(this System.IObservable<TSource> source, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> SubscribeOn<TSource>(this System.IObservable<TSource> source, System.Threading.SynchronizationContext context) { }
-        public static System.IObservable<double> Sum(this System.IObservable<double> source) { }
-        public static System.IObservable<float> Sum(this System.IObservable<float> source) { }
         public static System.IObservable<decimal> Sum(this System.IObservable<decimal> source) { }
+        public static System.IObservable<double> Sum(this System.IObservable<double> source) { }
         public static System.IObservable<int> Sum(this System.IObservable<int> source) { }
         public static System.IObservable<long> Sum(this System.IObservable<long> source) { }
-        public static System.IObservable<System.Nullable<double>> Sum(this System.IObservable<System.Nullable<double>> source) { }
-        public static System.IObservable<System.Nullable<float>> Sum(this System.IObservable<System.Nullable<float>> source) { }
-        public static System.IObservable<System.Nullable<decimal>> Sum(this System.IObservable<System.Nullable<decimal>> source) { }
-        public static System.IObservable<System.Nullable<int>> Sum(this System.IObservable<System.Nullable<int>> source) { }
-        public static System.IObservable<System.Nullable<long>> Sum(this System.IObservable<System.Nullable<long>> source) { }
-        public static System.IObservable<double> Sum<TSource>(this System.IObservable<TSource> source, System.Func<TSource, double> selector) { }
-        public static System.IObservable<float> Sum<TSource>(this System.IObservable<TSource> source, System.Func<TSource, float> selector) { }
+        public static System.IObservable<float> Sum(this System.IObservable<float> source) { }
+        public static System.IObservable<decimal?> Sum(this System.IObservable<decimal?> source) { }
+        public static System.IObservable<double?> Sum(this System.IObservable<double?> source) { }
+        public static System.IObservable<float?> Sum(this System.IObservable<float?> source) { }
+        public static System.IObservable<int?> Sum(this System.IObservable<int?> source) { }
+        public static System.IObservable<long?> Sum(this System.IObservable<long?> source) { }
         public static System.IObservable<decimal> Sum<TSource>(this System.IObservable<TSource> source, System.Func<TSource, decimal> selector) { }
+        public static System.IObservable<double> Sum<TSource>(this System.IObservable<TSource> source, System.Func<TSource, double> selector) { }
         public static System.IObservable<int> Sum<TSource>(this System.IObservable<TSource> source, System.Func<TSource, int> selector) { }
         public static System.IObservable<long> Sum<TSource>(this System.IObservable<TSource> source, System.Func<TSource, long> selector) { }
-        public static System.IObservable<System.Nullable<double>> Sum<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<double>> selector) { }
-        public static System.IObservable<System.Nullable<float>> Sum<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<float>> selector) { }
-        public static System.IObservable<System.Nullable<decimal>> Sum<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<decimal>> selector) { }
-        public static System.IObservable<System.Nullable<int>> Sum<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<int>> selector) { }
-        public static System.IObservable<System.Nullable<long>> Sum<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.Nullable<long>> selector) { }
+        public static System.IObservable<float> Sum<TSource>(this System.IObservable<TSource> source, System.Func<TSource, float> selector) { }
+        public static System.IObservable<decimal?> Sum<TSource>(this System.IObservable<TSource> source, System.Func<TSource, decimal?> selector) { }
+        public static System.IObservable<double?> Sum<TSource>(this System.IObservable<TSource> source, System.Func<TSource, double?> selector) { }
+        public static System.IObservable<float?> Sum<TSource>(this System.IObservable<TSource> source, System.Func<TSource, float?> selector) { }
+        public static System.IObservable<int?> Sum<TSource>(this System.IObservable<TSource> source, System.Func<TSource, int?> selector) { }
+        public static System.IObservable<long?> Sum<TSource>(this System.IObservable<TSource> source, System.Func<TSource, long?> selector) { }
         public static System.IObservable<TSource> Switch<TSource>(this System.IObservable<System.IObservable<TSource>> sources) { }
         public static System.IObservable<TSource> Switch<TSource>(this System.IObservable<System.Threading.Tasks.Task<TSource>> sources) { }
         public static System.IObservable<TSource> Synchronize<TSource>(this System.IObservable<TSource> source) { }
         public static System.IObservable<TSource> Synchronize<TSource>(this System.IObservable<TSource> source, object gate) { }
         public static System.IObservable<TSource> Take<TSource>(this System.IObservable<TSource> source, int count) { }
-        public static System.IObservable<TSource> Take<TSource>(this System.IObservable<TSource> source, int count, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> Take<TSource>(this System.IObservable<TSource> source, System.TimeSpan duration) { }
+        public static System.IObservable<TSource> Take<TSource>(this System.IObservable<TSource> source, int count, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> Take<TSource>(this System.IObservable<TSource> source, System.TimeSpan duration, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> TakeLast<TSource>(this System.IObservable<TSource> source, int count) { }
-        public static System.IObservable<TSource> TakeLast<TSource>(this System.IObservable<TSource> source, int count, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> TakeLast<TSource>(this System.IObservable<TSource> source, System.TimeSpan duration) { }
+        public static System.IObservable<TSource> TakeLast<TSource>(this System.IObservable<TSource> source, int count, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> TakeLast<TSource>(this System.IObservable<TSource> source, System.TimeSpan duration, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> TakeLast<TSource>(this System.IObservable<TSource> source, System.TimeSpan duration, System.Reactive.Concurrency.IScheduler timerScheduler, System.Reactive.Concurrency.IScheduler loopScheduler) { }
         public static System.IObservable<System.Collections.Generic.IList<TSource>> TakeLastBuffer<TSource>(this System.IObservable<TSource> source, int count) { }
         public static System.IObservable<System.Collections.Generic.IList<TSource>> TakeLastBuffer<TSource>(this System.IObservable<TSource> source, System.TimeSpan duration) { }
         public static System.IObservable<System.Collections.Generic.IList<TSource>> TakeLastBuffer<TSource>(this System.IObservable<TSource> source, System.TimeSpan duration, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<TSource> TakeUntil<TSource, TOther>(this System.IObservable<TSource> source, System.IObservable<TOther> other) { }
-        public static System.IObservable<TSource> TakeUntil<TSource>(this System.IObservable<TSource> source, System.Func<TSource, bool> stopPredicate) { }
         public static System.IObservable<TSource> TakeUntil<TSource>(this System.IObservable<TSource> source, System.DateTimeOffset endTime) { }
+        public static System.IObservable<TSource> TakeUntil<TSource>(this System.IObservable<TSource> source, System.Func<TSource, bool> stopPredicate) { }
         public static System.IObservable<TSource> TakeUntil<TSource>(this System.IObservable<TSource> source, System.DateTimeOffset endTime, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TSource> TakeUntil<TSource, TOther>(this System.IObservable<TSource> source, System.IObservable<TOther> other) { }
         public static System.IObservable<TSource> TakeWhile<TSource>(this System.IObservable<TSource> source, System.Func<TSource, bool> predicate) { }
         public static System.IObservable<TSource> TakeWhile<TSource>(this System.IObservable<TSource> source, System.Func<TSource, int, bool> predicate) { }
         public static System.Reactive.Joins.Plan<TResult> Then<TSource, TResult>(this System.IObservable<TSource> source, System.Func<TSource, TResult> selector) { }
@@ -1420,102 +1423,102 @@ public class static Observable
         public static System.IObservable<TSource> Throttle<TSource>(this System.IObservable<TSource> source, System.TimeSpan dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> Throttle<TSource, TThrottle>(this System.IObservable<TSource> source, System.Func<TSource, System.IObservable<TThrottle>> throttleDurationSelector) { }
         public static System.IObservable<TResult> Throw<TResult>(System.Exception exception) { }
-        public static System.IObservable<TResult> Throw<TResult>(System.Exception exception, TResult witness) { }
         public static System.IObservable<TResult> Throw<TResult>(System.Exception exception, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TResult> Throw<TResult>(System.Exception exception, TResult witness) { }
         public static System.IObservable<TResult> Throw<TResult>(System.Exception exception, System.Reactive.Concurrency.IScheduler scheduler, TResult witness) { }
         public static System.IObservable<System.Reactive.TimeInterval<TSource>> TimeInterval<TSource>(this System.IObservable<TSource> source) { }
         public static System.IObservable<System.Reactive.TimeInterval<TSource>> TimeInterval<TSource>(this System.IObservable<TSource> source, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<TSource> Timeout<TSource>(this System.IObservable<TSource> source, System.TimeSpan dueTime) { }
-        public static System.IObservable<TSource> Timeout<TSource>(this System.IObservable<TSource> source, System.TimeSpan dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<TSource> Timeout<TSource>(this System.IObservable<TSource> source, System.TimeSpan dueTime, System.IObservable<TSource> other) { }
-        public static System.IObservable<TSource> Timeout<TSource>(this System.IObservable<TSource> source, System.TimeSpan dueTime, System.IObservable<TSource> other, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> Timeout<TSource>(this System.IObservable<TSource> source, System.DateTimeOffset dueTime) { }
-        public static System.IObservable<TSource> Timeout<TSource>(this System.IObservable<TSource> source, System.DateTimeOffset dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TSource> Timeout<TSource>(this System.IObservable<TSource> source, System.TimeSpan dueTime) { }
         public static System.IObservable<TSource> Timeout<TSource>(this System.IObservable<TSource> source, System.DateTimeOffset dueTime, System.IObservable<TSource> other) { }
+        public static System.IObservable<TSource> Timeout<TSource>(this System.IObservable<TSource> source, System.DateTimeOffset dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TSource> Timeout<TSource>(this System.IObservable<TSource> source, System.TimeSpan dueTime, System.IObservable<TSource> other) { }
+        public static System.IObservable<TSource> Timeout<TSource>(this System.IObservable<TSource> source, System.TimeSpan dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> Timeout<TSource>(this System.IObservable<TSource> source, System.DateTimeOffset dueTime, System.IObservable<TSource> other, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TSource> Timeout<TSource>(this System.IObservable<TSource> source, System.TimeSpan dueTime, System.IObservable<TSource> other, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource> Timeout<TSource, TTimeout>(this System.IObservable<TSource> source, System.Func<TSource, System.IObservable<TTimeout>> timeoutDurationSelector) { }
         public static System.IObservable<TSource> Timeout<TSource, TTimeout>(this System.IObservable<TSource> source, System.Func<TSource, System.IObservable<TTimeout>> timeoutDurationSelector, System.IObservable<TSource> other) { }
         public static System.IObservable<TSource> Timeout<TSource, TTimeout>(this System.IObservable<TSource> source, System.IObservable<TTimeout> firstTimeout, System.Func<TSource, System.IObservable<TTimeout>> timeoutDurationSelector) { }
         public static System.IObservable<TSource> Timeout<TSource, TTimeout>(this System.IObservable<TSource> source, System.IObservable<TTimeout> firstTimeout, System.Func<TSource, System.IObservable<TTimeout>> timeoutDurationSelector, System.IObservable<TSource> other) { }
-        public static System.IObservable<long> Timer(System.TimeSpan dueTime) { }
         public static System.IObservable<long> Timer(System.DateTimeOffset dueTime) { }
-        public static System.IObservable<long> Timer(System.TimeSpan dueTime, System.TimeSpan period) { }
+        public static System.IObservable<long> Timer(System.TimeSpan dueTime) { }
+        public static System.IObservable<long> Timer(System.DateTimeOffset dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<long> Timer(System.DateTimeOffset dueTime, System.TimeSpan period) { }
         public static System.IObservable<long> Timer(System.TimeSpan dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<long> Timer(System.DateTimeOffset dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<long> Timer(System.TimeSpan dueTime, System.TimeSpan period, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<long> Timer(System.TimeSpan dueTime, System.TimeSpan period) { }
         public static System.IObservable<long> Timer(System.DateTimeOffset dueTime, System.TimeSpan period, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<long> Timer(System.TimeSpan dueTime, System.TimeSpan period, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<System.Reactive.Timestamped<TSource>> Timestamp<TSource>(this System.IObservable<TSource> source) { }
         public static System.IObservable<System.Reactive.Timestamped<TSource>> Timestamp<TSource>(this System.IObservable<TSource> source, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<TSource[]> ToArray<TSource>(this System.IObservable<TSource> source) { }
-        public static System.Func<System.IObservable<TResult>> ToAsync<TResult>(this System.Func<TResult> function) { }
-        public static System.Func<System.IObservable<TResult>> ToAsync<TResult>(this System.Func<TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, System.IObservable<TResult>> ToAsync<TArg1, TResult>(this System.Func<TArg1, TResult> function) { }
-        public static System.Func<TArg1, System.IObservable<TResult>> ToAsync<TArg1, TResult>(this System.Func<TArg1, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TResult>(this System.Func<TArg1, TArg2, TResult> function) { }
-        public static System.Func<TArg1, TArg2, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TResult>(this System.Func<TArg1, TArg2, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TResult>(this System.Func<TArg1, TArg2, TArg3, TResult> function) { }
-        public static System.Func<TArg1, TArg2, TArg3, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TResult>(this System.Func<TArg1, TArg2, TArg3, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TResult>(this System.Func<TArg1 function) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TResult>(this System.Func<TArg1 function, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TResult>(this System.Func<TArg1, TArg2 function) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TResult>(this System.Func<TArg1, TArg2 function, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TResult>(this System.Func<TArg1, TArg2, TArg3 function) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TResult>(this System.Func<TArg1, TArg2, TArg3 function, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4 function) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4 function, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5 function) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5 function, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6 function) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6 function, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7 function) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7 function, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8 function) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8 function, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9 function) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9 function, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10 function) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10 function, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11 function) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11 function, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12 function) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12 function, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13 function) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13 function, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<System.IObservable<System.Reactive.Unit>> ToAsync(this System.Action action) { }
         public static System.Func<System.IObservable<System.Reactive.Unit>> ToAsync(this System.Action action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1>(this System.Action<TArg1> action) { }
+        public static System.Func<System.IObservable<TResult>> ToAsync<TResult>(this System.Func<TResult> function) { }
         public static System.Func<TArg1, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1>(this System.Action<TArg1> action, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<System.IObservable<TResult>> ToAsync<TResult>(this System.Func<TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2>(this System.Action<TArg1, TArg2> action) { }
+        public static System.Func<TArg1, System.IObservable<TResult>> ToAsync<TArg1, TResult>(this System.Func<TArg1, TResult> function) { }
         public static System.Func<TArg1, TArg2, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2>(this System.Action<TArg1, TArg2> action, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, System.IObservable<TResult>> ToAsync<TArg1, TResult>(this System.Func<TArg1, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, TArg3, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3>(this System.Action<TArg1, TArg2, TArg3> action) { }
+        public static System.Func<TArg1, TArg2, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TResult>(this System.Func<TArg1, TArg2, TResult> function) { }
         public static System.Func<TArg1, TArg2, TArg3, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3>(this System.Action<TArg1, TArg2, TArg3> action, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TResult>(this System.Func<TArg1, TArg2, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4>(this System.Action<TArg1, TArg2, TArg3, TArg4> action) { }
+        public static System.Func<TArg1, TArg2, TArg3, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TResult>(this System.Func<TArg1, TArg2, TArg3, TResult> function) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4>(this System.Action<TArg1, TArg2, TArg3, TArg4> action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5>(this System.Action<TArg1 action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5>(this System.Action<TArg1 action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6>(this System.Action<TArg1, TArg2 action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6>(this System.Action<TArg1, TArg2 action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7>(this System.Action<TArg1, TArg2, TArg3 action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7>(this System.Action<TArg1, TArg2, TArg3 action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8>(this System.Action<TArg1, TArg2, TArg3, TArg4 action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8>(this System.Action<TArg1, TArg2, TArg3, TArg4 action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5 action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5 action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6 action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6 action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7 action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7 action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8 action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8 action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9 action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9 action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10 action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10 action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11 action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11 action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12 action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12 action, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TResult>(this System.Func<TArg1, TArg2, TArg3, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5> action) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TResult> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5> action, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6> action) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TResult> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6> action, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7> action) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TResult> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7> action, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8> action) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TResult> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8> action, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9> action) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TResult> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9> action, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10> action) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TResult> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10> action, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11> action) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TResult> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11> action, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12> action) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TResult> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12> action, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13> action) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TResult> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13> action, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14> action) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TResult> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14> action, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15> action) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TResult> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15> action, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16> action) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TResult> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, System.IObservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16>(this System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16> action, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, TResult> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, System.IObservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, TResult>(this System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, TResult> function, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<System.Collections.Generic.IDictionary<TKey, TSource>> ToDictionary<TSource, TKey>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector) { }
         public static System.IObservable<System.Collections.Generic.IDictionary<TKey, TSource>> ToDictionary<TSource, TKey>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
         public static System.IObservable<System.Collections.Generic.IDictionary<TKey, TElement>> ToDictionary<TSource, TKey, TElement>(this System.IObservable<TSource> source, System.Func<TSource, TKey> keySelector, System.Func<TSource, TElement> elementSelector) { }
@@ -1541,18 +1544,22 @@ public class static Observable
         public static System.IObservable<TSource> Where<TSource>(this System.IObservable<TSource> source, System.Func<TSource, bool> predicate) { }
         public static System.IObservable<TSource> Where<TSource>(this System.IObservable<TSource> source, System.Func<TSource, int, bool> predicate) { }
         public static System.IObservable<TSource> While<TSource>(System.Func<bool> condition, System.IObservable<TSource> source) { }
-        public static System.IObservable<System.IObservable<TSource>> Window<TSource, TWindowClosing>(this System.IObservable<TSource> source, System.Func<System.IObservable<TWindowClosing>> windowClosingSelector) { }
-        public static System.IObservable<System.IObservable<TSource>> Window<TSource, TWindowOpening, TWindowClosing>(this System.IObservable<TSource> source, System.IObservable<TWindowOpening> windowOpenings, System.Func<TWindowOpening, System.IObservable<TWindowClosing>> windowClosingSelector) { }
-        public static System.IObservable<System.IObservable<TSource>> Window<TSource, TWindowBoundary>(this System.IObservable<TSource> source, System.IObservable<TWindowBoundary> windowBoundaries) { }
         public static System.IObservable<System.IObservable<TSource>> Window<TSource>(this System.IObservable<TSource> source, int count) { }
-        public static System.IObservable<System.IObservable<TSource>> Window<TSource>(this System.IObservable<TSource> source, int count, int skip) { }
         public static System.IObservable<System.IObservable<TSource>> Window<TSource>(this System.IObservable<TSource> source, System.TimeSpan timeSpan) { }
+        public static System.IObservable<System.IObservable<TSource>> Window<TSource>(this System.IObservable<TSource> source, int count, int skip) { }
+        public static System.IObservable<System.IObservable<TSource>> Window<TSource>(this System.IObservable<TSource> source, System.TimeSpan timeSpan, int count) { }
         public static System.IObservable<System.IObservable<TSource>> Window<TSource>(this System.IObservable<TSource> source, System.TimeSpan timeSpan, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.IObservable<System.IObservable<TSource>> Window<TSource>(this System.IObservable<TSource> source, System.TimeSpan timeSpan, System.TimeSpan timeShift) { }
-        public static System.IObservable<System.IObservable<TSource>> Window<TSource>(this System.IObservable<TSource> source, System.TimeSpan timeSpan, System.TimeSpan timeShift, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.IObservable<System.IObservable<TSource>> Window<TSource>(this System.IObservable<TSource> source, System.TimeSpan timeSpan, int count) { }
         public static System.IObservable<System.IObservable<TSource>> Window<TSource>(this System.IObservable<TSource> source, System.TimeSpan timeSpan, int count, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<System.IObservable<TSource>> Window<TSource>(this System.IObservable<TSource> source, System.TimeSpan timeSpan, System.TimeSpan timeShift, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<System.IObservable<TSource>> Window<TSource, TWindowClosing>(this System.IObservable<TSource> source, System.Func<System.IObservable<TWindowClosing>> windowClosingSelector) { }
+        public static System.IObservable<System.IObservable<TSource>> Window<TSource, TWindowBoundary>(this System.IObservable<TSource> source, System.IObservable<TWindowBoundary> windowBoundaries) { }
+        public static System.IObservable<System.IObservable<TSource>> Window<TSource, TWindowOpening, TWindowClosing>(this System.IObservable<TSource> source, System.IObservable<TWindowOpening> windowOpenings, System.Func<TWindowOpening, System.IObservable<TWindowClosing>> windowClosingSelector) { }
         public static System.IObservable<TResult> WithLatestFrom<TFirst, TSecond, TResult>(this System.IObservable<TFirst> first, System.IObservable<TSecond> second, System.Func<TFirst, TSecond, TResult> resultSelector) { }
+        public static System.IObservable<System.Collections.Generic.IList<TSource>> Zip<TSource>(params System.IObservable<>[] sources) { }
+        public static System.IObservable<System.Collections.Generic.IList<TSource>> Zip<TSource>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
+        public static System.IObservable<TResult> Zip<TSource, TResult>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources, System.Func<System.Collections.Generic.IList<TSource>, TResult> resultSelector) { }
+        public static System.IObservable<TResult> Zip<TSource1, TSource2, TResult>(this System.IObservable<TSource1> first, System.Collections.Generic.IEnumerable<TSource2> second, System.Func<TSource1, TSource2, TResult> resultSelector) { }
         public static System.IObservable<TResult> Zip<TSource1, TSource2, TResult>(this System.IObservable<TSource1> first, System.IObservable<TSource2> second, System.Func<TSource1, TSource2, TResult> resultSelector) { }
         public static System.IObservable<TResult> Zip<TSource1, TSource2, TSource3, TResult>(this System.IObservable<TSource1> source1, System.IObservable<TSource2> source2, System.IObservable<TSource3> source3, System.Func<TSource1, TSource2, TSource3, TResult> resultSelector) { }
         public static System.IObservable<TResult> Zip<TSource1, TSource2, TSource3, TSource4, TResult>(this System.IObservable<TSource1> source1, System.IObservable<TSource2> source2, System.IObservable<TSource3> source3, System.IObservable<TSource4> source4, System.Func<TSource1, TSource2, TSource3, TSource4, TResult> resultSelector) { }
@@ -1601,47 +1608,43 @@ public class static Observable
                     System.IObservable<TSource15> source15,
                     System.IObservable<TSource16> source16,
                     System.Func<TSource1, TSource2, TSource3, TSource4, TSource5, TSource6, TSource7, TSource8, TSource9, TSource10, TSource11, TSource12, TSource13, TSource14, TSource15, TSource16, TResult> resultSelector) { }
-        public static System.IObservable<TResult> Zip<TSource, TResult>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources, System.Func<System.Collections.Generic.IList<TSource>, TResult> resultSelector) { }
-        public static System.IObservable<System.Collections.Generic.IList<TSource>> Zip<TSource>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
-        public static System.IObservable<System.Collections.Generic.IList<TSource>> Zip<TSource>(params System.IObservable<>[] sources) { }
-        public static System.IObservable<TResult> Zip<TSource1, TSource2, TResult>(this System.IObservable<TSource1> first, System.Collections.Generic.IEnumerable<TSource2> second, System.Func<TSource1, TSource2, TResult> resultSelector) { }
     }
-    public class static ObservableEx
+    public static class ObservableEx
     {
-        [System.Reactive.Experimental]
-        public static System.IObservable<TResult> Create<TResult>(System.Func<System.IObserver<TResult>, System.Collections.Generic.IEnumerable<System.IObservable<object>>> iteratorMethod) { }
         [System.Reactive.Experimental]
         public static System.IObservable<System.Reactive.Unit> Create(System.Func<System.Collections.Generic.IEnumerable<System.IObservable<object>>> iteratorMethod) { }
         [System.Reactive.Experimental]
-        public static System.IObservable<TSource> Expand<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.IObservable<TSource>> selector, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TResult> Create<TResult>(System.Func<System.IObserver<TResult>, System.Collections.Generic.IEnumerable<System.IObservable<object>>> iteratorMethod) { }
         [System.Reactive.Experimental]
         public static System.IObservable<TSource> Expand<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.IObservable<TSource>> selector) { }
         [System.Reactive.Experimental]
-        public static System.IObservable<TResult> ForkJoin<TSource1, TSource2, TResult>(this System.IObservable<TSource1> first, System.IObservable<TSource2> second, System.Func<TSource1, TSource2, TResult> resultSelector) { }
+        public static System.IObservable<TSource> Expand<TSource>(this System.IObservable<TSource> source, System.Func<TSource, System.IObservable<TSource>> selector, System.Reactive.Concurrency.IScheduler scheduler) { }
         [System.Reactive.Experimental]
         public static System.IObservable<TSource[]> ForkJoin<TSource>(params System.IObservable<>[] sources) { }
         [System.Reactive.Experimental]
         public static System.IObservable<TSource[]> ForkJoin<TSource>(this System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
         [System.Reactive.Experimental]
-        public static System.IObservable<TResult> Let<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, System.IObservable<TResult>> selector) { }
+        public static System.IObservable<TResult> ForkJoin<TSource1, TSource2, TResult>(this System.IObservable<TSource1> first, System.IObservable<TSource2> second, System.Func<TSource1, TSource2, TResult> resultSelector) { }
         [System.Reactive.Experimental]
-        public static System.IObservable<TResult> ManySelect<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, TResult> selector, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.IObservable<TResult> Let<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, System.IObservable<TResult>> selector) { }
         [System.Reactive.Experimental]
         public static System.IObservable<TResult> ManySelect<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, TResult> selector) { }
         [System.Reactive.Experimental]
+        public static System.IObservable<TResult> ManySelect<TSource, TResult>(this System.IObservable<TSource> source, System.Func<System.IObservable<TSource>, TResult> selector, System.Reactive.Concurrency.IScheduler scheduler) { }
+        [System.Reactive.Experimental]
         public static System.Reactive.ListObservable<TSource> ToListObservable<TSource>(this System.IObservable<TSource> source) { }
     }
     [System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
-    public class static Qbservable
+    public static class Qbservable
     {
         public static System.Reactive.Linq.IQbservableProvider Provider { get; }
         public static System.Reactive.Linq.IQbservable<TSource> Aggregate<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TSource, TSource>> accumulator) { }
         public static System.Reactive.Linq.IQbservable<TAccumulate> Aggregate<TSource, TAccumulate>(this System.Reactive.Linq.IQbservable<TSource> source, TAccumulate seed, System.Linq.Expressions.Expression<System.Func<TAccumulate, TSource, TAccumulate>> accumulator) { }
         public static System.Reactive.Linq.IQbservable<TResult> Aggregate<TSource, TAccumulate, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, TAccumulate seed, System.Linq.Expressions.Expression<System.Func<TAccumulate, TSource, TAccumulate>> accumulator, System.Linq.Expressions.Expression<System.Func<TAccumulate, TResult>> resultSelector) { }
         public static System.Reactive.Linq.IQbservable<bool> All<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, bool>> predicate) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Amb<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.IObservable<TSource> second) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Amb<TSource>(this System.Reactive.Linq.IQbservableProvider provider, params System.IObservable<>[] sources) { }
         public static System.Reactive.Linq.IQbservable<TSource> Amb<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Amb<TSource>(this System.Reactive.Linq.IQbservableProvider provider, params System.IObservable<>[] sources) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Amb<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.IObservable<TSource> second) { }
         public static System.Reactive.Joins.QueryablePattern<TLeft, TRight> And<TLeft, TRight>(this System.Reactive.Linq.IQbservable<TLeft> left, System.IObservable<TRight> right) { }
         public static System.Reactive.Linq.IQbservable<bool> Any<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
         public static System.Reactive.Linq.IQbservable<bool> Any<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, bool>> predicate) { }
@@ -1654,29 +1657,29 @@ public class static Qbservable
         public static System.Reactive.Linq.IQbservable<double> Average(this System.Reactive.Linq.IQbservable<double> source) { }
         public static System.Reactive.Linq.IQbservable<double> Average(this System.Reactive.Linq.IQbservable<int> source) { }
         public static System.Reactive.Linq.IQbservable<double> Average(this System.Reactive.Linq.IQbservable<long> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<decimal>> Average(this System.Reactive.Linq.IQbservable<System.Nullable<decimal>> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<double>> Average(this System.Reactive.Linq.IQbservable<System.Nullable<double>> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<double>> Average(this System.Reactive.Linq.IQbservable<System.Nullable<int>> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<double>> Average(this System.Reactive.Linq.IQbservable<System.Nullable<long>> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<float>> Average(this System.Reactive.Linq.IQbservable<System.Nullable<float>> source) { }
         public static System.Reactive.Linq.IQbservable<float> Average(this System.Reactive.Linq.IQbservable<float> source) { }
+        public static System.Reactive.Linq.IQbservable<decimal?> Average(this System.Reactive.Linq.IQbservable<decimal?> source) { }
+        public static System.Reactive.Linq.IQbservable<double?> Average(this System.Reactive.Linq.IQbservable<double?> source) { }
+        public static System.Reactive.Linq.IQbservable<float?> Average(this System.Reactive.Linq.IQbservable<float?> source) { }
+        public static System.Reactive.Linq.IQbservable<double?> Average(this System.Reactive.Linq.IQbservable<int?> source) { }
+        public static System.Reactive.Linq.IQbservable<double?> Average(this System.Reactive.Linq.IQbservable<long?> source) { }
         public static System.Reactive.Linq.IQbservable<decimal> Average<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, decimal>> selector) { }
         public static System.Reactive.Linq.IQbservable<double> Average<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, double>> selector) { }
-        public static System.Reactive.Linq.IQbservable<float> Average<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, float>> selector) { }
         public static System.Reactive.Linq.IQbservable<double> Average<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int>> selector) { }
         public static System.Reactive.Linq.IQbservable<double> Average<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, long>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<decimal>> Average<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<decimal>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<double>> Average<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<double>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<float>> Average<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<float>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<double>> Average<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<int>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<double>> Average<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<long>>> selector) { }
+        public static System.Reactive.Linq.IQbservable<float> Average<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, float>> selector) { }
+        public static System.Reactive.Linq.IQbservable<decimal?> Average<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, decimal?>> selector) { }
+        public static System.Reactive.Linq.IQbservable<double?> Average<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, double?>> selector) { }
+        public static System.Reactive.Linq.IQbservable<float?> Average<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, float?>> selector) { }
+        public static System.Reactive.Linq.IQbservable<double?> Average<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int?>> selector) { }
+        public static System.Reactive.Linq.IQbservable<double?> Average<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, long?>> selector) { }
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, int count) { }
-        public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, int count, int skip) { }
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan timeSpan) { }
+        public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, int count, int skip) { }
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan timeSpan, int count) { }
-        public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan timeSpan, int count, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan timeSpan, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan timeSpan, System.TimeSpan timeShift) { }
+        public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan timeSpan, int count, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> Buffer<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan timeSpan, System.TimeSpan timeShift, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> Buffer<TSource, TBufferBoundary>(this System.Reactive.Linq.IQbservable<TSource> source, System.IObservable<TBufferBoundary> bufferBoundaries) { }
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> Buffer<TSource, TBufferClosing>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<System.IObservable<TBufferClosing>>> bufferClosingSelector) { }
@@ -1685,14 +1688,14 @@ public class static Qbservable
         public static System.Reactive.Linq.IQbservable<TResult> Case<TValue, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TValue>> selector, System.Collections.Generic.IDictionary<TValue, System.IObservable<TResult>> sources, System.IObservable<TResult> defaultSource) { }
         public static System.Reactive.Linq.IQbservable<TResult> Case<TValue, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TValue>> selector, System.Collections.Generic.IDictionary<TValue, System.IObservable<TResult>> sources, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TResult> Cast<TResult>(this System.Reactive.Linq.IQbservable<object> source) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Catch<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.IObservable<TSource> second) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Catch<TSource>(this System.Reactive.Linq.IQbservableProvider provider, params System.IObservable<>[] sources) { }
         public static System.Reactive.Linq.IQbservable<TSource> Catch<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Catch<TSource>(this System.Reactive.Linq.IQbservableProvider provider, params System.IObservable<>[] sources) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Catch<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.IObservable<TSource> second) { }
         public static System.Reactive.Linq.IQbservable<TSource> Catch<TSource, TException>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TException, System.IObservable<TSource>>> handler)
             where TException : System.Exception { }
         public static System.Linq.IQueryable<System.Collections.Generic.IList<TSource>> Chunkify<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
-        public static System.Linq.IQueryable<TResult> Collect<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TResult>> getInitialCollector, System.Linq.Expressions.Expression<System.Func<TResult, TSource, TResult>> merge, System.Linq.Expressions.Expression<System.Func<TResult, TResult>> getNewCollector) { }
         public static System.Linq.IQueryable<TResult> Collect<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TResult>> newCollector, System.Linq.Expressions.Expression<System.Func<TResult, TSource, TResult>> merge) { }
+        public static System.Linq.IQueryable<TResult> Collect<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TResult>> getInitialCollector, System.Linq.Expressions.Expression<System.Func<TResult, TSource, TResult>> merge, System.Linq.Expressions.Expression<System.Func<TResult, TResult>> getNewCollector) { }
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> CombineLatest<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> CombineLatest<TSource>(this System.Reactive.Linq.IQbservableProvider provider, params System.IObservable<>[] sources) { }
         public static System.Reactive.Linq.IQbservable<TResult> CombineLatest<TSource, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources, System.Linq.Expressions.Expression<System.Func<System.Collections.Generic.IList<TSource>, TResult>> resultSelector) { }
@@ -1744,37 +1747,37 @@ public class static Qbservable
                     System.IObservable<TSource15> source15,
                     System.IObservable<TSource16> source16,
                     System.Linq.Expressions.Expression<System.Func<TSource1, TSource2, TSource3, TSource4, TSource5, TSource6, TSource7, TSource8, TSource9, TSource10, TSource11, TSource12, TSource13, TSource14, TSource15, TSource16, TResult>> resultSelector) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Concat<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.IObservable<TSource> second) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Concat<TSource>(this System.Reactive.Linq.IQbservableProvider provider, params System.IObservable<>[] sources) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Concat<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
         public static System.Reactive.Linq.IQbservable<TSource> Concat<TSource>(this System.Reactive.Linq.IQbservable<System.IObservable<TSource>> sources) { }
         public static System.Reactive.Linq.IQbservable<TSource> Concat<TSource>(this System.Reactive.Linq.IQbservable<System.Threading.Tasks.Task<TSource>> sources) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Concat<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Concat<TSource>(this System.Reactive.Linq.IQbservableProvider provider, params System.IObservable<>[] sources) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Concat<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.IObservable<TSource> second) { }
         public static System.Reactive.Linq.IQbservable<bool> Contains<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, TSource value) { }
         public static System.Reactive.Linq.IQbservable<bool> Contains<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, TSource value, System.Collections.Generic.IEqualityComparer<TSource> comparer) { }
         public static System.Reactive.Linq.IQbservable<int> Count<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
         public static System.Reactive.Linq.IQbservable<int> Count<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, bool>> predicate) { }
-        public static System.Reactive.Linq.IQbservable<TResult> Create<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.IObserver<TResult>, System.IDisposable>> subscribe) { }
         public static System.Reactive.Linq.IQbservable<TResult> Create<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.IObserver<TResult>, System.Action>> subscribe) { }
-        public static System.Reactive.Linq.IQbservable<TResult> Create<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.IObserver<TResult>, System.Threading.CancellationToken, System.Threading.Tasks.Task>> subscribeAsync) { }
+        public static System.Reactive.Linq.IQbservable<TResult> Create<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.IObserver<TResult>, System.IDisposable>> subscribe) { }
         public static System.Reactive.Linq.IQbservable<TResult> Create<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.IObserver<TResult>, System.Threading.Tasks.Task>> subscribeAsync) { }
-        public static System.Reactive.Linq.IQbservable<TResult> Create<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.IObserver<TResult>, System.Threading.CancellationToken, System.Threading.Tasks.Task<System.IDisposable>>> subscribeAsync) { }
+        public static System.Reactive.Linq.IQbservable<TResult> Create<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.IObserver<TResult>, System.Threading.Tasks.Task<System.Action>>> subscribeAsync) { }
         public static System.Reactive.Linq.IQbservable<TResult> Create<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.IObserver<TResult>, System.Threading.Tasks.Task<System.IDisposable>>> subscribeAsync) { }
+        public static System.Reactive.Linq.IQbservable<TResult> Create<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.IObserver<TResult>, System.Threading.CancellationToken, System.Threading.Tasks.Task>> subscribeAsync) { }
         public static System.Reactive.Linq.IQbservable<TResult> Create<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.IObserver<TResult>, System.Threading.CancellationToken, System.Threading.Tasks.Task<System.Action>>> subscribeAsync) { }
-        public static System.Reactive.Linq.IQbservable<TResult> Create<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.IObserver<TResult>, System.Threading.Tasks.Task<System.Action>>> subscribeAsync) { }
+        public static System.Reactive.Linq.IQbservable<TResult> Create<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.IObserver<TResult>, System.Threading.CancellationToken, System.Threading.Tasks.Task<System.IDisposable>>> subscribeAsync) { }
         public static System.Reactive.Linq.IQbservable<TSource> DefaultIfEmpty<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
         public static System.Reactive.Linq.IQbservable<TSource> DefaultIfEmpty<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, TSource defaultValue) { }
         public static System.Reactive.Linq.IQbservable<TResult> Defer<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.IObservable<TResult>>> observableFactory) { }
         public static System.Reactive.Linq.IQbservable<TResult> Defer<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.Tasks.Task<System.IObservable<TResult>>>> observableFactoryAsync) { }
         public static System.Reactive.Linq.IQbservable<TResult> DeferAsync<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task<System.IObservable<TResult>>>> observableFactoryAsync) { }
         public static System.Reactive.Linq.IQbservable<TSource> Delay<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.DateTimeOffset dueTime) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Delay<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.DateTimeOffset dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> Delay<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan dueTime) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Delay<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.DateTimeOffset dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> Delay<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> Delay<TSource, TDelay>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TDelay>>> delayDurationSelector) { }
         public static System.Reactive.Linq.IQbservable<TSource> Delay<TSource, TDelay>(this System.Reactive.Linq.IQbservable<TSource> source, System.IObservable<TDelay> subscriptionDelay, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TDelay>>> delayDurationSelector) { }
         public static System.Reactive.Linq.IQbservable<TSource> DelaySubscription<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.DateTimeOffset dueTime) { }
-        public static System.Reactive.Linq.IQbservable<TSource> DelaySubscription<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.DateTimeOffset dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> DelaySubscription<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan dueTime) { }
+        public static System.Reactive.Linq.IQbservable<TSource> DelaySubscription<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.DateTimeOffset dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> DelaySubscription<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> Dematerialize<TSource>(this System.Reactive.Linq.IQbservable<System.Reactive.Notification<TSource>> source) { }
         public static System.Reactive.Linq.IQbservable<TSource> Distinct<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
@@ -1795,8 +1798,8 @@ public class static Qbservable
         public static System.Reactive.Linq.IQbservable<TSource> ElementAtOrDefault<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, int index) { }
         public static System.Reactive.Linq.IQbservable<TResult> Empty<TResult>(this System.Reactive.Linq.IQbservableProvider provider) { }
         public static System.Reactive.Linq.IQbservable<TResult> Empty<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Linq.IQbservable<TResult> Empty<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Reactive.Concurrency.IScheduler scheduler, TResult witness) { }
         public static System.Reactive.Linq.IQbservable<TResult> Empty<TResult>(this System.Reactive.Linq.IQbservableProvider provider, TResult witness) { }
+        public static System.Reactive.Linq.IQbservable<TResult> Empty<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Reactive.Concurrency.IScheduler scheduler, TResult witness) { }
         public static System.Reactive.Linq.IQbservable<TSource> Finally<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Action> finallyAction) { }
         public static System.Reactive.Linq.IQbservable<TSource> FirstAsync<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
         public static System.Reactive.Linq.IQbservable<TSource> FirstAsync<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, bool>> predicate) { }
@@ -1804,95 +1807,95 @@ public class static Qbservable
         public static System.Reactive.Linq.IQbservable<TSource> FirstOrDefaultAsync<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, bool>> predicate) { }
         public static System.Reactive.Linq.IQbservable<TResult> For<TSource, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Collections.Generic.IEnumerable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TResult>>> resultSelector) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Unit> FromAsync(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.Tasks.Task>> actionAsync) { }
-        public static System.Reactive.Linq.IQbservable<System.Reactive.Unit> FromAsync(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.Tasks.Task>> actionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Unit> FromAsync(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task>> actionAsync) { }
+        public static System.Reactive.Linq.IQbservable<System.Reactive.Unit> FromAsync(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.Tasks.Task>> actionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Unit> FromAsync(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task>> actionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TResult> FromAsync<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.Tasks.Task<TResult>>> functionAsync) { }
         public static System.Reactive.Linq.IQbservable<TResult> FromAsync<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>>> functionAsync) { }
         public static System.Reactive.Linq.IQbservable<TResult> FromAsync<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.Tasks.Task<TResult>>> functionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TResult> FromAsync<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>>> functionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
+        public static System.Func<System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
         public static System.Func<TArg1, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
+        public static System.Func<TArg1, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
         public static System.Func<TArg1, TArg2, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
+        public static System.Func<TArg1, TArg2, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TArg2, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
         public static System.Func<TArg1, TArg2, TArg3, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
+        public static System.Func<TArg1, TArg2, TArg3, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
-        public static System.Func<System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
-        public static System.Func<TArg1, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
-        public static System.Func<TArg1, TArg2, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TArg2, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
-        public static System.Func<TArg1, TArg2, TArg3, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Action<System.IAsyncResult>> end) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.Reactive.Linq.IQbservable<TResult>> FromAsyncPattern<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.AsyncCallback, object, System.IAsyncResult>> begin, System.Linq.Expressions.Expression<System.Func<System.IAsyncResult, TResult>> end) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Unit> FromEvent(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<System.Action>> addHandler, System.Linq.Expressions.Expression<System.Action<System.Action>> removeHandler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Unit> FromEvent(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<System.Action>> addHandler, System.Linq.Expressions.Expression<System.Action<System.Action>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<TEventArgs> FromEvent<TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<System.Action<TEventArgs>>> addHandler, System.Linq.Expressions.Expression<System.Action<System.Action<TEventArgs>>> removeHandler) { }
+        public static System.Reactive.Linq.IQbservable<TEventArgs> FromEvent<TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<System.Action<TEventArgs>>> addHandler, System.Linq.Expressions.Expression<System.Action<System.Action<TEventArgs>>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TEventArgs> FromEvent<TDelegate, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TDelegate>> addHandler, System.Linq.Expressions.Expression<System.Action<TDelegate>> removeHandler) { }
         public static System.Reactive.Linq.IQbservable<TEventArgs> FromEvent<TDelegate, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TDelegate>> addHandler, System.Linq.Expressions.Expression<System.Action<TDelegate>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TEventArgs> FromEvent<TDelegate, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Action<TEventArgs>, TDelegate>> conversion, System.Linq.Expressions.Expression<System.Action<TDelegate>> addHandler, System.Linq.Expressions.Expression<System.Action<TDelegate>> removeHandler) { }
         public static System.Reactive.Linq.IQbservable<TEventArgs> FromEvent<TDelegate, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Action<TEventArgs>, TDelegate>> conversion, System.Linq.Expressions.Expression<System.Action<TDelegate>> addHandler, System.Linq.Expressions.Expression<System.Action<TDelegate>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Linq.IQbservable<TEventArgs> FromEvent<TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<System.Action<TEventArgs>>> addHandler, System.Linq.Expressions.Expression<System.Action<System.Action<TEventArgs>>> removeHandler) { }
-        public static System.Reactive.Linq.IQbservable<TEventArgs> FromEvent<TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<System.Action<TEventArgs>>> addHandler, System.Linq.Expressions.Expression<System.Action<System.Action<TEventArgs>>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<object>> FromEventPattern(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<System.EventHandler>> addHandler, System.Linq.Expressions.Expression<System.Action<System.EventHandler>> removeHandler) { }
-        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<object>> FromEventPattern(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<System.EventHandler>> addHandler, System.Linq.Expressions.Expression<System.Action<System.EventHandler>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<object>> FromEventPattern(this System.Reactive.Linq.IQbservableProvider provider, object target, string eventName) { }
-        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<object>> FromEventPattern(this System.Reactive.Linq.IQbservableProvider provider, object target, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<object>> FromEventPattern(this System.Reactive.Linq.IQbservableProvider provider, System.Type type, string eventName) { }
+        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<object>> FromEventPattern(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<System.EventHandler>> addHandler, System.Linq.Expressions.Expression<System.Action<System.EventHandler>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<object>> FromEventPattern(this System.Reactive.Linq.IQbservableProvider provider, object target, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<object>> FromEventPattern(this System.Reactive.Linq.IQbservableProvider provider, System.Type type, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TDelegate, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TDelegate>> addHandler, System.Linq.Expressions.Expression<System.Action<TDelegate>> removeHandler) { }
-        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TDelegate, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TDelegate>> addHandler, System.Linq.Expressions.Expression<System.Action<TDelegate>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TDelegate, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.EventHandler<TEventArgs>, TDelegate>> conversion, System.Linq.Expressions.Expression<System.Action<TDelegate>> addHandler, System.Linq.Expressions.Expression<System.Action<TDelegate>> removeHandler) { }
-        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TDelegate, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.EventHandler<TEventArgs>, TDelegate>> conversion, System.Linq.Expressions.Expression<System.Action<TDelegate>> addHandler, System.Linq.Expressions.Expression<System.Action<TDelegate>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TDelegate, TSender, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TDelegate>> addHandler, System.Linq.Expressions.Expression<System.Action<TDelegate>> removeHandler) { }
-        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TDelegate, TSender, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TDelegate>> addHandler, System.Linq.Expressions.Expression<System.Action<TDelegate>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<System.EventHandler<TEventArgs>>> addHandler, System.Linq.Expressions.Expression<System.Action<System.EventHandler<TEventArgs>>> removeHandler) { }
-        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<System.EventHandler<TEventArgs>>> addHandler, System.Linq.Expressions.Expression<System.Action<System.EventHandler<TEventArgs>>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, object target, string eventName) { }
-        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, object target, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Type type, string eventName) { }
+        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<System.EventHandler<TEventArgs>>> addHandler, System.Linq.Expressions.Expression<System.Action<System.EventHandler<TEventArgs>>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, object target, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Type type, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TDelegate, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TDelegate>> addHandler, System.Linq.Expressions.Expression<System.Action<TDelegate>> removeHandler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TSender, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, object target, string eventName) { }
-        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TSender, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, object target, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TSender, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Type type, string eventName) { }
+        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TDelegate, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TDelegate>> addHandler, System.Linq.Expressions.Expression<System.Action<TDelegate>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TDelegate, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.EventHandler<TEventArgs>, TDelegate>> conversion, System.Linq.Expressions.Expression<System.Action<TDelegate>> addHandler, System.Linq.Expressions.Expression<System.Action<TDelegate>> removeHandler) { }
+        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TSender, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, object target, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TSender, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Type type, string eventName, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TEventArgs>> FromEventPattern<TDelegate, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.EventHandler<TEventArgs>, TDelegate>> conversion, System.Linq.Expressions.Expression<System.Action<TDelegate>> addHandler, System.Linq.Expressions.Expression<System.Action<TDelegate>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TDelegate, TSender, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TDelegate>> addHandler, System.Linq.Expressions.Expression<System.Action<TDelegate>> removeHandler) { }
+        public static System.Reactive.Linq.IQbservable<System.Reactive.EventPattern<TSender, TEventArgs>> FromEventPattern<TDelegate, TSender, TEventArgs>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TDelegate>> addHandler, System.Linq.Expressions.Expression<System.Action<TDelegate>> removeHandler, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TResult> Generate<TState, TResult>(this System.Reactive.Linq.IQbservableProvider provider, TState initialState, System.Linq.Expressions.Expression<System.Func<TState, bool>> condition, System.Linq.Expressions.Expression<System.Func<TState, TState>> iterate, System.Linq.Expressions.Expression<System.Func<TState, TResult>> resultSelector) { }
-        public static System.Reactive.Linq.IQbservable<TResult> Generate<TState, TResult>(this System.Reactive.Linq.IQbservableProvider provider, TState initialState, System.Linq.Expressions.Expression<System.Func<TState, bool>> condition, System.Linq.Expressions.Expression<System.Func<TState, TState>> iterate, System.Linq.Expressions.Expression<System.Func<TState, TResult>> resultSelector, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Linq.IQbservable<TResult> Generate<TState, TResult>(this System.Reactive.Linq.IQbservableProvider provider, TState initialState, System.Linq.Expressions.Expression<System.Func<TState, bool>> condition, System.Linq.Expressions.Expression<System.Func<TState, TState>> iterate, System.Linq.Expressions.Expression<System.Func<TState, TResult>> resultSelector, System.Linq.Expressions.Expression<System.Func<TState, System.TimeSpan>> timeSelector) { }
         public static System.Reactive.Linq.IQbservable<TResult> Generate<TState, TResult>(this System.Reactive.Linq.IQbservableProvider provider, TState initialState, System.Linq.Expressions.Expression<System.Func<TState, bool>> condition, System.Linq.Expressions.Expression<System.Func<TState, TState>> iterate, System.Linq.Expressions.Expression<System.Func<TState, TResult>> resultSelector, System.Linq.Expressions.Expression<System.Func<TState, System.DateTimeOffset>> timeSelector) { }
-        public static System.Reactive.Linq.IQbservable<TResult> Generate<TState, TResult>(this System.Reactive.Linq.IQbservableProvider provider, TState initialState, System.Linq.Expressions.Expression<System.Func<TState, bool>> condition, System.Linq.Expressions.Expression<System.Func<TState, TState>> iterate, System.Linq.Expressions.Expression<System.Func<TState, TResult>> resultSelector, System.Linq.Expressions.Expression<System.Func<TState, System.TimeSpan>> timeSelector, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<TResult> Generate<TState, TResult>(this System.Reactive.Linq.IQbservableProvider provider, TState initialState, System.Linq.Expressions.Expression<System.Func<TState, bool>> condition, System.Linq.Expressions.Expression<System.Func<TState, TState>> iterate, System.Linq.Expressions.Expression<System.Func<TState, TResult>> resultSelector, System.Linq.Expressions.Expression<System.Func<TState, System.TimeSpan>> timeSelector) { }
+        public static System.Reactive.Linq.IQbservable<TResult> Generate<TState, TResult>(this System.Reactive.Linq.IQbservableProvider provider, TState initialState, System.Linq.Expressions.Expression<System.Func<TState, bool>> condition, System.Linq.Expressions.Expression<System.Func<TState, TState>> iterate, System.Linq.Expressions.Expression<System.Func<TState, TResult>> resultSelector, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TResult> Generate<TState, TResult>(this System.Reactive.Linq.IQbservableProvider provider, TState initialState, System.Linq.Expressions.Expression<System.Func<TState, bool>> condition, System.Linq.Expressions.Expression<System.Func<TState, TState>> iterate, System.Linq.Expressions.Expression<System.Func<TState, TResult>> resultSelector, System.Linq.Expressions.Expression<System.Func<TState, System.DateTimeOffset>> timeSelector, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<TResult> Generate<TState, TResult>(this System.Reactive.Linq.IQbservableProvider provider, TState initialState, System.Linq.Expressions.Expression<System.Func<TState, bool>> condition, System.Linq.Expressions.Expression<System.Func<TState, TState>> iterate, System.Linq.Expressions.Expression<System.Func<TState, TResult>> resultSelector, System.Linq.Expressions.Expression<System.Func<TState, System.TimeSpan>> timeSelector, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupBy<TSource, TKey>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector) { }
+        public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupBy<TSource, TKey>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupBy<TSource, TKey>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, int capacity) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupBy<TSource, TKey>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, int capacity, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
-        public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupBy<TSource, TKey>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupBy<TSource, TKey, TElement>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Linq.Expressions.Expression<System.Func<TSource, TElement>> elementSelector) { }
+        public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupBy<TSource, TKey, TElement>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Linq.Expressions.Expression<System.Func<TSource, TElement>> elementSelector, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupBy<TSource, TKey, TElement>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Linq.Expressions.Expression<System.Func<TSource, TElement>> elementSelector, int capacity) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupBy<TSource, TKey, TElement>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Linq.Expressions.Expression<System.Func<TSource, TElement>> elementSelector, int capacity, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
-        public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupBy<TSource, TKey, TElement>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Linq.Expressions.Expression<System.Func<TSource, TElement>> elementSelector, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupByUntil<TSource, TKey, TDuration>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Linq.Expressions.Expression<System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TSource>, System.IObservable<TDuration>>> durationSelector) { }
+        public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupByUntil<TSource, TKey, TDuration>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Linq.Expressions.Expression<System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TSource>, System.IObservable<TDuration>>> durationSelector, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupByUntil<TSource, TKey, TDuration>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Linq.Expressions.Expression<System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TSource>, System.IObservable<TDuration>>> durationSelector, int capacity) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupByUntil<TSource, TKey, TDuration>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Linq.Expressions.Expression<System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TSource>, System.IObservable<TDuration>>> durationSelector, int capacity, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
-        public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TSource>> GroupByUntil<TSource, TKey, TDuration>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Linq.Expressions.Expression<System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TSource>, System.IObservable<TDuration>>> durationSelector, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupByUntil<TSource, TKey, TElement, TDuration>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Linq.Expressions.Expression<System.Func<TSource, TElement>> elementSelector, System.Linq.Expressions.Expression<System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TElement>, System.IObservable<TDuration>>> durationSelector) { }
+        public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupByUntil<TSource, TKey, TElement, TDuration>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Linq.Expressions.Expression<System.Func<TSource, TElement>> elementSelector, System.Linq.Expressions.Expression<System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TElement>, System.IObservable<TDuration>>> durationSelector, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupByUntil<TSource, TKey, TElement, TDuration>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Linq.Expressions.Expression<System.Func<TSource, TElement>> elementSelector, System.Linq.Expressions.Expression<System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TElement>, System.IObservable<TDuration>>> durationSelector, int capacity) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupByUntil<TSource, TKey, TElement, TDuration>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Linq.Expressions.Expression<System.Func<TSource, TElement>> elementSelector, System.Linq.Expressions.Expression<System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TElement>, System.IObservable<TDuration>>> durationSelector, int capacity, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
-        public static System.Reactive.Linq.IQbservable<System.Reactive.Linq.IGroupedObservable<TKey, TElement>> GroupByUntil<TSource, TKey, TElement, TDuration>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Linq.Expressions.Expression<System.Func<TSource, TElement>> elementSelector, System.Linq.Expressions.Expression<System.Func<System.Reactive.Linq.IGroupedObservable<TKey, TElement>, System.IObservable<TDuration>>> durationSelector, System.Collections.Generic.IEqualityComparer<TKey> comparer) { }
         public static System.Reactive.Linq.IQbservable<TResult> GroupJoin<TLeft, TRight, TLeftDuration, TRightDuration, TResult>(this System.Reactive.Linq.IQbservable<TLeft> left, System.IObservable<TRight> right, System.Linq.Expressions.Expression<System.Func<TLeft, System.IObservable<TLeftDuration>>> leftDurationSelector, System.Linq.Expressions.Expression<System.Func<TRight, System.IObservable<TRightDuration>>> rightDurationSelector, System.Linq.Expressions.Expression<System.Func<TLeft, System.IObservable<TRight>, TResult>> resultSelector) { }
         public static System.Reactive.Linq.IQbservable<TResult> If<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<bool>> condition, System.IObservable<TResult> thenSource) { }
         public static System.Reactive.Linq.IQbservable<TResult> If<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<bool>> condition, System.IObservable<TResult> thenSource, System.IObservable<TResult> elseSource) { }
@@ -1914,61 +1917,61 @@ public class static Qbservable
         public static System.Reactive.Linq.IQbservable<double> Max(this System.Reactive.Linq.IQbservable<double> source) { }
         public static System.Reactive.Linq.IQbservable<int> Max(this System.Reactive.Linq.IQbservable<int> source) { }
         public static System.Reactive.Linq.IQbservable<long> Max(this System.Reactive.Linq.IQbservable<long> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<decimal>> Max(this System.Reactive.Linq.IQbservable<System.Nullable<decimal>> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<double>> Max(this System.Reactive.Linq.IQbservable<System.Nullable<double>> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<int>> Max(this System.Reactive.Linq.IQbservable<System.Nullable<int>> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<long>> Max(this System.Reactive.Linq.IQbservable<System.Nullable<long>> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<float>> Max(this System.Reactive.Linq.IQbservable<System.Nullable<float>> source) { }
         public static System.Reactive.Linq.IQbservable<float> Max(this System.Reactive.Linq.IQbservable<float> source) { }
+        public static System.Reactive.Linq.IQbservable<decimal?> Max(this System.Reactive.Linq.IQbservable<decimal?> source) { }
+        public static System.Reactive.Linq.IQbservable<double?> Max(this System.Reactive.Linq.IQbservable<double?> source) { }
+        public static System.Reactive.Linq.IQbservable<float?> Max(this System.Reactive.Linq.IQbservable<float?> source) { }
+        public static System.Reactive.Linq.IQbservable<int?> Max(this System.Reactive.Linq.IQbservable<int?> source) { }
+        public static System.Reactive.Linq.IQbservable<long?> Max(this System.Reactive.Linq.IQbservable<long?> source) { }
         public static System.Reactive.Linq.IQbservable<TSource> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
         public static System.Reactive.Linq.IQbservable<TSource> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Collections.Generic.IComparer<TSource> comparer) { }
-        public static System.Reactive.Linq.IQbservable<double> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, double>> selector) { }
-        public static System.Reactive.Linq.IQbservable<float> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, float>> selector) { }
         public static System.Reactive.Linq.IQbservable<decimal> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, decimal>> selector) { }
+        public static System.Reactive.Linq.IQbservable<double> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, double>> selector) { }
         public static System.Reactive.Linq.IQbservable<int> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int>> selector) { }
         public static System.Reactive.Linq.IQbservable<long> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, long>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<double>> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<double>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<float>> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<float>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<decimal>> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<decimal>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<int>> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<int>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<long>> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<long>>> selector) { }
+        public static System.Reactive.Linq.IQbservable<float> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, float>> selector) { }
+        public static System.Reactive.Linq.IQbservable<decimal?> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, decimal?>> selector) { }
+        public static System.Reactive.Linq.IQbservable<double?> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, double?>> selector) { }
+        public static System.Reactive.Linq.IQbservable<float?> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, float?>> selector) { }
+        public static System.Reactive.Linq.IQbservable<int?> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int?>> selector) { }
+        public static System.Reactive.Linq.IQbservable<long?> Max<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, long?>> selector) { }
         public static System.Reactive.Linq.IQbservable<TResult> Max<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TResult>> selector) { }
         public static System.Reactive.Linq.IQbservable<TResult> Max<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TResult>> selector, System.Collections.Generic.IComparer<TResult> comparer) { }
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> MaxBy<TSource, TKey>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector) { }
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> MaxBy<TSource, TKey>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector, System.Collections.Generic.IComparer<TKey> comparer) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Merge<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.IObservable<TSource> second) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Merge<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.IObservable<TSource> second, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Merge<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Reactive.Concurrency.IScheduler scheduler, params System.IObservable<>[] sources) { }
         public static System.Reactive.Linq.IQbservable<TSource> Merge<TSource>(this System.Reactive.Linq.IQbservable<System.IObservable<TSource>> sources) { }
         public static System.Reactive.Linq.IQbservable<TSource> Merge<TSource>(this System.Reactive.Linq.IQbservable<System.Threading.Tasks.Task<TSource>> sources) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Merge<TSource>(this System.Reactive.Linq.IQbservableProvider provider, params System.IObservable<>[] sources) { }
         public static System.Reactive.Linq.IQbservable<TSource> Merge<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Merge<TSource>(this System.Reactive.Linq.IQbservableProvider provider, params System.IObservable<>[] sources) { }
         public static System.Reactive.Linq.IQbservable<TSource> Merge<TSource>(this System.Reactive.Linq.IQbservable<System.IObservable<TSource>> sources, int maxConcurrent) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Merge<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.IObservable<TSource> second) { }
         public static System.Reactive.Linq.IQbservable<TSource> Merge<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources, int maxConcurrent) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Merge<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources, int maxConcurrent, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> Merge<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Merge<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Reactive.Concurrency.IScheduler scheduler, params System.IObservable<>[] sources) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Merge<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.IObservable<TSource> second, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Merge<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources, int maxConcurrent, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<decimal> Min(this System.Reactive.Linq.IQbservable<decimal> source) { }
         public static System.Reactive.Linq.IQbservable<double> Min(this System.Reactive.Linq.IQbservable<double> source) { }
         public static System.Reactive.Linq.IQbservable<int> Min(this System.Reactive.Linq.IQbservable<int> source) { }
         public static System.Reactive.Linq.IQbservable<long> Min(this System.Reactive.Linq.IQbservable<long> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<decimal>> Min(this System.Reactive.Linq.IQbservable<System.Nullable<decimal>> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<double>> Min(this System.Reactive.Linq.IQbservable<System.Nullable<double>> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<int>> Min(this System.Reactive.Linq.IQbservable<System.Nullable<int>> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<long>> Min(this System.Reactive.Linq.IQbservable<System.Nullable<long>> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<float>> Min(this System.Reactive.Linq.IQbservable<System.Nullable<float>> source) { }
         public static System.Reactive.Linq.IQbservable<float> Min(this System.Reactive.Linq.IQbservable<float> source) { }
+        public static System.Reactive.Linq.IQbservable<decimal?> Min(this System.Reactive.Linq.IQbservable<decimal?> source) { }
+        public static System.Reactive.Linq.IQbservable<double?> Min(this System.Reactive.Linq.IQbservable<double?> source) { }
+        public static System.Reactive.Linq.IQbservable<float?> Min(this System.Reactive.Linq.IQbservable<float?> source) { }
+        public static System.Reactive.Linq.IQbservable<int?> Min(this System.Reactive.Linq.IQbservable<int?> source) { }
+        public static System.Reactive.Linq.IQbservable<long?> Min(this System.Reactive.Linq.IQbservable<long?> source) { }
         public static System.Reactive.Linq.IQbservable<TSource> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
         public static System.Reactive.Linq.IQbservable<TSource> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Collections.Generic.IComparer<TSource> comparer) { }
-        public static System.Reactive.Linq.IQbservable<double> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, double>> selector) { }
-        public static System.Reactive.Linq.IQbservable<float> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, float>> selector) { }
         public static System.Reactive.Linq.IQbservable<decimal> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, decimal>> selector) { }
+        public static System.Reactive.Linq.IQbservable<double> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, double>> selector) { }
         public static System.Reactive.Linq.IQbservable<int> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int>> selector) { }
         public static System.Reactive.Linq.IQbservable<long> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, long>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<double>> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<double>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<float>> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<float>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<decimal>> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<decimal>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<int>> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<int>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<long>> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<long>>> selector) { }
+        public static System.Reactive.Linq.IQbservable<float> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, float>> selector) { }
+        public static System.Reactive.Linq.IQbservable<decimal?> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, decimal?>> selector) { }
+        public static System.Reactive.Linq.IQbservable<double?> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, double?>> selector) { }
+        public static System.Reactive.Linq.IQbservable<float?> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, float?>> selector) { }
+        public static System.Reactive.Linq.IQbservable<int?> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int?>> selector) { }
+        public static System.Reactive.Linq.IQbservable<long?> Min<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, long?>> selector) { }
         public static System.Reactive.Linq.IQbservable<TResult> Min<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TResult>> selector) { }
         public static System.Reactive.Linq.IQbservable<TResult> Min<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TResult>> selector, System.Collections.Generic.IComparer<TResult> comparer) { }
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> MinBy<TSource, TKey>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TKey>> keySelector) { }
@@ -1978,12 +1981,12 @@ public class static Qbservable
         public static System.Reactive.Linq.IQbservable<TResult> Never<TResult>(this System.Reactive.Linq.IQbservableProvider provider) { }
         public static System.Reactive.Linq.IQbservable<TResult> Never<TResult>(this System.Reactive.Linq.IQbservableProvider provider, TResult witness) { }
         public static System.Linq.IQueryable<TSource> Next<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
-        public static System.Reactive.Linq.IQbservable<TSource> ObserveOn<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Threading.SynchronizationContext context) { }
         public static System.Reactive.Linq.IQbservable<TSource> ObserveOn<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<TSource> ObserveOn<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Threading.SynchronizationContext context) { }
         public static System.Reactive.Linq.IQbservable<TResult> OfType<TResult>(this System.Reactive.Linq.IQbservable<object> source) { }
-        public static System.Reactive.Linq.IQbservable<TSource> OnErrorResumeNext<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.IObservable<TSource> second) { }
-        public static System.Reactive.Linq.IQbservable<TSource> OnErrorResumeNext<TSource>(this System.Reactive.Linq.IQbservableProvider provider, params System.IObservable<>[] sources) { }
         public static System.Reactive.Linq.IQbservable<TSource> OnErrorResumeNext<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
+        public static System.Reactive.Linq.IQbservable<TSource> OnErrorResumeNext<TSource>(this System.Reactive.Linq.IQbservableProvider provider, params System.IObservable<>[] sources) { }
+        public static System.Reactive.Linq.IQbservable<TSource> OnErrorResumeNext<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.IObservable<TSource> second) { }
         public static System.Reactive.Linq.IQbservable<TSource> Prepend<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, TSource value) { }
         public static System.Reactive.Linq.IQbservable<TSource> Prepend<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, TSource value, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TResult> Publish<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<System.IObservable<TSource>, System.IObservable<TResult>>> selector) { }
@@ -1994,21 +1997,21 @@ public class static Qbservable
         public static System.Reactive.Linq.IQbservable<TSource> RefCount<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Reactive.Subjects.IConnectableObservable<TSource> source) { }
         public static System.Reactive.Linq.IQbservable<TSource> RefCount<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Reactive.Subjects.IConnectableObservable<TSource> source, System.TimeSpan disconnectDelay) { }
         public static System.Reactive.Linq.IQbservable<TSource> RefCount<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Reactive.Subjects.IConnectableObservable<TSource> source, System.TimeSpan disconnectDelay, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Repeat<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
         public static System.Reactive.Linq.IQbservable<TResult> Repeat<TResult>(this System.Reactive.Linq.IQbservableProvider provider, TResult value) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Repeat<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, int repeatCount) { }
         public static System.Reactive.Linq.IQbservable<TResult> Repeat<TResult>(this System.Reactive.Linq.IQbservableProvider provider, TResult value, int repeatCount) { }
-        public static System.Reactive.Linq.IQbservable<TResult> Repeat<TResult>(this System.Reactive.Linq.IQbservableProvider provider, TResult value, int repeatCount, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TResult> Repeat<TResult>(this System.Reactive.Linq.IQbservableProvider provider, TResult value, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Repeat<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Repeat<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, int repeatCount) { }
+        public static System.Reactive.Linq.IQbservable<TResult> Repeat<TResult>(this System.Reactive.Linq.IQbservableProvider provider, TResult value, int repeatCount, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> RepeatWhen<TSource, TSignal>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<System.IObservable<object>, System.IObservable<TSignal>>> handler) { }
         public static System.Reactive.Linq.IQbservable<TResult> Replay<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<System.IObservable<TSource>, System.IObservable<TResult>>> selector) { }
         public static System.Reactive.Linq.IQbservable<TResult> Replay<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<System.IObservable<TSource>, System.IObservable<TResult>>> selector, int bufferSize) { }
-        public static System.Reactive.Linq.IQbservable<TResult> Replay<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<System.IObservable<TSource>, System.IObservable<TResult>>> selector, int bufferSize, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Linq.IQbservable<TResult> Replay<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<System.IObservable<TSource>, System.IObservable<TResult>>> selector, int bufferSize, System.TimeSpan window) { }
-        public static System.Reactive.Linq.IQbservable<TResult> Replay<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<System.IObservable<TSource>, System.IObservable<TResult>>> selector, int bufferSize, System.TimeSpan window, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TResult> Replay<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<System.IObservable<TSource>, System.IObservable<TResult>>> selector, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TResult> Replay<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<System.IObservable<TSource>, System.IObservable<TResult>>> selector, System.TimeSpan window) { }
+        public static System.Reactive.Linq.IQbservable<TResult> Replay<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<System.IObservable<TSource>, System.IObservable<TResult>>> selector, int bufferSize, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<TResult> Replay<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<System.IObservable<TSource>, System.IObservable<TResult>>> selector, int bufferSize, System.TimeSpan window) { }
         public static System.Reactive.Linq.IQbservable<TResult> Replay<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<System.IObservable<TSource>, System.IObservable<TResult>>> selector, System.TimeSpan window, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<TResult> Replay<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<System.IObservable<TSource>, System.IObservable<TResult>>> selector, int bufferSize, System.TimeSpan window, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> Retry<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
         public static System.Reactive.Linq.IQbservable<TSource> Retry<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, int retryCount) { }
         public static System.Reactive.Linq.IQbservable<TSource> RetryWhen<TSource, TSignal>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<System.IObservable<System.Exception>, System.IObservable<TSignal>>> handler) { }
@@ -2021,29 +2024,29 @@ public class static Qbservable
         public static System.Reactive.Linq.IQbservable<TAccumulate> Scan<TSource, TAccumulate>(this System.Reactive.Linq.IQbservable<TSource> source, TAccumulate seed, System.Linq.Expressions.Expression<System.Func<TAccumulate, TSource, TAccumulate>> accumulator) { }
         public static System.Reactive.Linq.IQbservable<TResult> Select<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TResult>> selector) { }
         public static System.Reactive.Linq.IQbservable<TResult> Select<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, TResult>> selector) { }
-        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TCollection, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TCollection>>> collectionSelector, System.Linq.Expressions.Expression<System.Func<TSource, TCollection, TResult>> resultSelector) { }
-        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TCollection, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.IObservable<TCollection>>> collectionSelector, System.Linq.Expressions.Expression<System.Func<TSource, int, TCollection, int, TResult>> resultSelector) { }
-        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TCollection, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Collections.Generic.IEnumerable<TCollection>>> collectionSelector, System.Linq.Expressions.Expression<System.Func<TSource, TCollection, TResult>> resultSelector) { }
-        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TCollection, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.Collections.Generic.IEnumerable<TCollection>>> collectionSelector, System.Linq.Expressions.Expression<System.Func<TSource, int, TCollection, int, TResult>> resultSelector) { }
         public static System.Reactive.Linq.IQbservable<TOther> SelectMany<TSource, TOther>(this System.Reactive.Linq.IQbservable<TSource> source, System.IObservable<TOther> other) { }
-        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TResult>>> onNext, System.Linq.Expressions.Expression<System.Func<System.Exception, System.IObservable<TResult>>> onError, System.Linq.Expressions.Expression<System.Func<System.IObservable<TResult>>> onCompleted) { }
-        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.IObservable<TResult>>> onNext, System.Linq.Expressions.Expression<System.Func<System.Exception, System.IObservable<TResult>>> onError, System.Linq.Expressions.Expression<System.Func<System.IObservable<TResult>>> onCompleted) { }
+        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Collections.Generic.IEnumerable<TResult>>> selector) { }
         public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TResult>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.IObservable<TResult>>> selector) { }
         public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Threading.Tasks.Task<TResult>>> selector) { }
+        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.Collections.Generic.IEnumerable<TResult>>> selector) { }
+        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.IObservable<TResult>>> selector) { }
         public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.Threading.Tasks.Task<TResult>>> selector) { }
         public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>>> selector) { }
         public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Collections.Generic.IEnumerable<TResult>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.Collections.Generic.IEnumerable<TResult>>> selector) { }
+        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TResult>>> onNext, System.Linq.Expressions.Expression<System.Func<System.Exception, System.IObservable<TResult>>> onError, System.Linq.Expressions.Expression<System.Func<System.IObservable<TResult>>> onCompleted) { }
+        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.IObservable<TResult>>> onNext, System.Linq.Expressions.Expression<System.Func<System.Exception, System.IObservable<TResult>>> onError, System.Linq.Expressions.Expression<System.Func<System.IObservable<TResult>>> onCompleted) { }
+        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TCollection, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Collections.Generic.IEnumerable<TCollection>>> collectionSelector, System.Linq.Expressions.Expression<System.Func<TSource, TCollection, TResult>> resultSelector) { }
+        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TCollection, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TCollection>>> collectionSelector, System.Linq.Expressions.Expression<System.Func<TSource, TCollection, TResult>> resultSelector) { }
         public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TTaskResult, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Threading.Tasks.Task<TTaskResult>>> taskSelector, System.Linq.Expressions.Expression<System.Func<TSource, TTaskResult, TResult>> resultSelector) { }
+        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TCollection, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.Collections.Generic.IEnumerable<TCollection>>> collectionSelector, System.Linq.Expressions.Expression<System.Func<TSource, int, TCollection, int, TResult>> resultSelector) { }
+        public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TCollection, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.IObservable<TCollection>>> collectionSelector, System.Linq.Expressions.Expression<System.Func<TSource, int, TCollection, int, TResult>> resultSelector) { }
         public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TTaskResult, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.Threading.Tasks.Task<TTaskResult>>> taskSelector, System.Linq.Expressions.Expression<System.Func<TSource, int, TTaskResult, TResult>> resultSelector) { }
         public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TTaskResult, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Threading.CancellationToken, System.Threading.Tasks.Task<TTaskResult>>> taskSelector, System.Linq.Expressions.Expression<System.Func<TSource, TTaskResult, TResult>> resultSelector) { }
         public static System.Reactive.Linq.IQbservable<TResult> SelectMany<TSource, TTaskResult, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, System.Threading.CancellationToken, System.Threading.Tasks.Task<TTaskResult>>> taskSelector, System.Linq.Expressions.Expression<System.Func<TSource, int, TTaskResult, TResult>> resultSelector) { }
-        public static System.Reactive.Linq.IQbservable<bool> SequenceEqual<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.IObservable<TSource> second) { }
         public static System.Reactive.Linq.IQbservable<bool> SequenceEqual<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.Collections.Generic.IEnumerable<TSource> second) { }
-        public static System.Reactive.Linq.IQbservable<bool> SequenceEqual<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.IObservable<TSource> second, System.Collections.Generic.IEqualityComparer<TSource> comparer) { }
+        public static System.Reactive.Linq.IQbservable<bool> SequenceEqual<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.IObservable<TSource> second) { }
         public static System.Reactive.Linq.IQbservable<bool> SequenceEqual<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.Collections.Generic.IEnumerable<TSource> second, System.Collections.Generic.IEqualityComparer<TSource> comparer) { }
+        public static System.Reactive.Linq.IQbservable<bool> SequenceEqual<TSource>(this System.Reactive.Linq.IQbservable<TSource> first, System.IObservable<TSource> second, System.Collections.Generic.IEqualityComparer<TSource> comparer) { }
         public static System.Reactive.Linq.IQbservable<TSource> SingleAsync<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
         public static System.Reactive.Linq.IQbservable<TSource> SingleAsync<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, bool>> predicate) { }
         public static System.Reactive.Linq.IQbservable<TSource> SingleOrDefaultAsync<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
@@ -2064,59 +2067,59 @@ public class static Qbservable
         public static System.Reactive.Linq.IQbservable<TResult> Start<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TResult>> function) { }
         public static System.Reactive.Linq.IQbservable<TResult> Start<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Unit> StartAsync(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.Tasks.Task>> actionAsync) { }
-        public static System.Reactive.Linq.IQbservable<System.Reactive.Unit> StartAsync(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.Tasks.Task>> actionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Unit> StartAsync(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task>> actionAsync) { }
+        public static System.Reactive.Linq.IQbservable<System.Reactive.Unit> StartAsync(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.Tasks.Task>> actionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Unit> StartAsync(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task>> actionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TResult> StartAsync<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.Tasks.Task<TResult>>> functionAsync) { }
         public static System.Reactive.Linq.IQbservable<TResult> StartAsync<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>>> functionAsync) { }
         public static System.Reactive.Linq.IQbservable<TResult> StartAsync<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.Tasks.Task<TResult>>> functionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TResult> StartAsync<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task<TResult>>> functionAsync, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Linq.IQbservable<TSource> StartWith<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Reactive.Concurrency.IScheduler scheduler, params TSource[] values) { }
-        public static System.Reactive.Linq.IQbservable<TSource> StartWith<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Reactive.Concurrency.IScheduler scheduler, System.Collections.Generic.IEnumerable<TSource> values) { }
-        public static System.Reactive.Linq.IQbservable<TSource> StartWith<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, params TSource[] values) { }
         public static System.Reactive.Linq.IQbservable<TSource> StartWith<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Collections.Generic.IEnumerable<TSource> values) { }
-        public static System.Reactive.Linq.IQbservable<TSource> SubscribeOn<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Threading.SynchronizationContext context) { }
+        public static System.Reactive.Linq.IQbservable<TSource> StartWith<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, params TSource[] values) { }
+        public static System.Reactive.Linq.IQbservable<TSource> StartWith<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Reactive.Concurrency.IScheduler scheduler, System.Collections.Generic.IEnumerable<TSource> values) { }
+        public static System.Reactive.Linq.IQbservable<TSource> StartWith<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Reactive.Concurrency.IScheduler scheduler, params TSource[] values) { }
         public static System.Reactive.Linq.IQbservable<TSource> SubscribeOn<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<TSource> SubscribeOn<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Threading.SynchronizationContext context) { }
         public static System.Reactive.Linq.IQbservable<decimal> Sum(this System.Reactive.Linq.IQbservable<decimal> source) { }
         public static System.Reactive.Linq.IQbservable<double> Sum(this System.Reactive.Linq.IQbservable<double> source) { }
         public static System.Reactive.Linq.IQbservable<int> Sum(this System.Reactive.Linq.IQbservable<int> source) { }
         public static System.Reactive.Linq.IQbservable<long> Sum(this System.Reactive.Linq.IQbservable<long> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<decimal>> Sum(this System.Reactive.Linq.IQbservable<System.Nullable<decimal>> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<double>> Sum(this System.Reactive.Linq.IQbservable<System.Nullable<double>> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<int>> Sum(this System.Reactive.Linq.IQbservable<System.Nullable<int>> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<long>> Sum(this System.Reactive.Linq.IQbservable<System.Nullable<long>> source) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<float>> Sum(this System.Reactive.Linq.IQbservable<System.Nullable<float>> source) { }
         public static System.Reactive.Linq.IQbservable<float> Sum(this System.Reactive.Linq.IQbservable<float> source) { }
-        public static System.Reactive.Linq.IQbservable<double> Sum<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, double>> selector) { }
-        public static System.Reactive.Linq.IQbservable<float> Sum<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, float>> selector) { }
+        public static System.Reactive.Linq.IQbservable<decimal?> Sum(this System.Reactive.Linq.IQbservable<decimal?> source) { }
+        public static System.Reactive.Linq.IQbservable<double?> Sum(this System.Reactive.Linq.IQbservable<double?> source) { }
+        public static System.Reactive.Linq.IQbservable<float?> Sum(this System.Reactive.Linq.IQbservable<float?> source) { }
+        public static System.Reactive.Linq.IQbservable<int?> Sum(this System.Reactive.Linq.IQbservable<int?> source) { }
+        public static System.Reactive.Linq.IQbservable<long?> Sum(this System.Reactive.Linq.IQbservable<long?> source) { }
         public static System.Reactive.Linq.IQbservable<decimal> Sum<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, decimal>> selector) { }
+        public static System.Reactive.Linq.IQbservable<double> Sum<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, double>> selector) { }
         public static System.Reactive.Linq.IQbservable<int> Sum<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int>> selector) { }
         public static System.Reactive.Linq.IQbservable<long> Sum<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, long>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<double>> Sum<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<double>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<float>> Sum<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<float>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<decimal>> Sum<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<decimal>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<int>> Sum<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<int>>> selector) { }
-        public static System.Reactive.Linq.IQbservable<System.Nullable<long>> Sum<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.Nullable<long>>> selector) { }
+        public static System.Reactive.Linq.IQbservable<float> Sum<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, float>> selector) { }
+        public static System.Reactive.Linq.IQbservable<decimal?> Sum<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, decimal?>> selector) { }
+        public static System.Reactive.Linq.IQbservable<double?> Sum<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, double?>> selector) { }
+        public static System.Reactive.Linq.IQbservable<float?> Sum<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, float?>> selector) { }
+        public static System.Reactive.Linq.IQbservable<int?> Sum<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int?>> selector) { }
+        public static System.Reactive.Linq.IQbservable<long?> Sum<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, long?>> selector) { }
         public static System.Reactive.Linq.IQbservable<TSource> Switch<TSource>(this System.Reactive.Linq.IQbservable<System.IObservable<TSource>> sources) { }
         public static System.Reactive.Linq.IQbservable<TSource> Switch<TSource>(this System.Reactive.Linq.IQbservable<System.Threading.Tasks.Task<TSource>> sources) { }
         public static System.Reactive.Linq.IQbservable<TSource> Synchronize<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
         public static System.Reactive.Linq.IQbservable<TSource> Synchronize<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, object gate) { }
         public static System.Reactive.Linq.IQbservable<TSource> Take<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, int count) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Take<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, int count, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> Take<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan duration) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Take<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, int count, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> Take<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan duration, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> TakeLast<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, int count) { }
-        public static System.Reactive.Linq.IQbservable<TSource> TakeLast<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, int count, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> TakeLast<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan duration) { }
+        public static System.Reactive.Linq.IQbservable<TSource> TakeLast<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, int count, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> TakeLast<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan duration, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> TakeLast<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan duration, System.Reactive.Concurrency.IScheduler timerScheduler, System.Reactive.Concurrency.IScheduler loopScheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> TakeLastBuffer<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, int count) { }
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> TakeLastBuffer<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan duration) { }
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> TakeLastBuffer<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan duration, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> TakeUntil<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.DateTimeOffset endTime) { }
+        public static System.Reactive.Linq.IQbservable<TSource> TakeUntil<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, bool>> stopPredicate) { }
         public static System.Reactive.Linq.IQbservable<TSource> TakeUntil<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.DateTimeOffset endTime, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> TakeUntil<TSource, TOther>(this System.Reactive.Linq.IQbservable<TSource> source, System.IObservable<TOther> other) { }
-        public static System.Reactive.Linq.IQbservable<TSource> TakeUntil<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, bool>> stopPredicate) { }
         public static System.Reactive.Linq.IQbservable<TSource> TakeWhile<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, bool>> predicate) { }
         public static System.Reactive.Linq.IQbservable<TSource> TakeWhile<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, bool>> predicate) { }
         public static System.Reactive.Joins.QueryablePlan<TResult> Then<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, TResult>> selector) { }
@@ -2125,98 +2128,98 @@ public class static Qbservable
         public static System.Reactive.Linq.IQbservable<TSource> Throttle<TSource, TThrottle>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TThrottle>>> throttleDurationSelector) { }
         public static System.Reactive.Linq.IQbservable<TResult> Throw<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Exception exception) { }
         public static System.Reactive.Linq.IQbservable<TResult> Throw<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Exception exception, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Linq.IQbservable<TResult> Throw<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Exception exception, System.Reactive.Concurrency.IScheduler scheduler, TResult witness) { }
         public static System.Reactive.Linq.IQbservable<TResult> Throw<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Exception exception, TResult witness) { }
+        public static System.Reactive.Linq.IQbservable<TResult> Throw<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Exception exception, System.Reactive.Concurrency.IScheduler scheduler, TResult witness) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.TimeInterval<TSource>> TimeInterval<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.TimeInterval<TSource>> TimeInterval<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> Timeout<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.DateTimeOffset dueTime) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Timeout<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan dueTime) { }
         public static System.Reactive.Linq.IQbservable<TSource> Timeout<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.DateTimeOffset dueTime, System.IObservable<TSource> other) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Timeout<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.DateTimeOffset dueTime, System.IObservable<TSource> other, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> Timeout<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.DateTimeOffset dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Timeout<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan dueTime) { }
         public static System.Reactive.Linq.IQbservable<TSource> Timeout<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan dueTime, System.IObservable<TSource> other) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Timeout<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan dueTime, System.IObservable<TSource> other, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> Timeout<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Timeout<TSource, TTimeout>(this System.Reactive.Linq.IQbservable<TSource> source, System.IObservable<TTimeout> firstTimeout, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TTimeout>>> timeoutDurationSelector) { }
-        public static System.Reactive.Linq.IQbservable<TSource> Timeout<TSource, TTimeout>(this System.Reactive.Linq.IQbservable<TSource> source, System.IObservable<TTimeout> firstTimeout, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TTimeout>>> timeoutDurationSelector, System.IObservable<TSource> other) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Timeout<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.DateTimeOffset dueTime, System.IObservable<TSource> other, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Timeout<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan dueTime, System.IObservable<TSource> other, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource> Timeout<TSource, TTimeout>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TTimeout>>> timeoutDurationSelector) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Timeout<TSource, TTimeout>(this System.Reactive.Linq.IQbservable<TSource> source, System.IObservable<TTimeout> firstTimeout, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TTimeout>>> timeoutDurationSelector) { }
         public static System.Reactive.Linq.IQbservable<TSource> Timeout<TSource, TTimeout>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TTimeout>>> timeoutDurationSelector, System.IObservable<TSource> other) { }
+        public static System.Reactive.Linq.IQbservable<TSource> Timeout<TSource, TTimeout>(this System.Reactive.Linq.IQbservable<TSource> source, System.IObservable<TTimeout> firstTimeout, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TTimeout>>> timeoutDurationSelector, System.IObservable<TSource> other) { }
         public static System.Reactive.Linq.IQbservable<long> Timer(this System.Reactive.Linq.IQbservableProvider provider, System.DateTimeOffset dueTime) { }
-        public static System.Reactive.Linq.IQbservable<long> Timer(this System.Reactive.Linq.IQbservableProvider provider, System.DateTimeOffset dueTime, System.TimeSpan period) { }
-        public static System.Reactive.Linq.IQbservable<long> Timer(this System.Reactive.Linq.IQbservableProvider provider, System.DateTimeOffset dueTime, System.TimeSpan period, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Linq.IQbservable<long> Timer(this System.Reactive.Linq.IQbservableProvider provider, System.DateTimeOffset dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<long> Timer(this System.Reactive.Linq.IQbservableProvider provider, System.TimeSpan dueTime) { }
+        public static System.Reactive.Linq.IQbservable<long> Timer(this System.Reactive.Linq.IQbservableProvider provider, System.DateTimeOffset dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Linq.IQbservable<long> Timer(this System.Reactive.Linq.IQbservableProvider provider, System.DateTimeOffset dueTime, System.TimeSpan period) { }
+        public static System.Reactive.Linq.IQbservable<long> Timer(this System.Reactive.Linq.IQbservableProvider provider, System.TimeSpan dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<long> Timer(this System.Reactive.Linq.IQbservableProvider provider, System.TimeSpan dueTime, System.TimeSpan period) { }
+        public static System.Reactive.Linq.IQbservable<long> Timer(this System.Reactive.Linq.IQbservableProvider provider, System.DateTimeOffset dueTime, System.TimeSpan period, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<long> Timer(this System.Reactive.Linq.IQbservableProvider provider, System.TimeSpan dueTime, System.TimeSpan period, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Reactive.Linq.IQbservable<long> Timer(this System.Reactive.Linq.IQbservableProvider provider, System.TimeSpan dueTime, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Timestamped<TSource>> Timestamp<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
         public static System.Reactive.Linq.IQbservable<System.Reactive.Timestamped<TSource>> Timestamp<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<TSource[]> ToArray<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
         public static System.Func<System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action> action) { }
         public static System.Func<System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1>> action) { }
-        public static System.Func<TArg1, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2>> action) { }
-        public static System.Func<TArg1, TArg2, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3>> action) { }
-        public static System.Func<TArg1, TArg2, TArg3, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4>> action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5>> action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6>> action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7>> action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8>> action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9>> action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10>> action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11>> action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12>> action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13>> action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14>> action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15>> action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16>> action) { }
-        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<System.Reactive.Linq.IQbservable<TResult>> ToAsync<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TResult>> function) { }
+        public static System.Func<TArg1, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<System.Reactive.Linq.IQbservable<TResult>> ToAsync<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2>> action) { }
         public static System.Func<TArg1, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TResult>> function) { }
+        public static System.Func<TArg1, TArg2, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3>> action) { }
         public static System.Func<TArg1, TArg2, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TResult>> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4>> action) { }
         public static System.Func<TArg1, TArg2, TArg3, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TResult>> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, TArg3, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5>> action) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TResult>> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6>> action) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TResult>> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7>> action) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TResult>> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8>> action) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TResult>> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9>> action) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TResult>> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10>> action) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TResult>> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11>> action) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TResult>> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12>> action) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TResult>> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13>> action) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TResult>> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14>> action) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TResult>> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15>> action) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TResult>> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16>> action) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TResult>> function) { }
+        public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, System.Reactive.Linq.IQbservable<System.Reactive.Unit>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Action<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16>> action, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, TResult>> function) { }
         public static System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, System.Reactive.Linq.IQbservable<TResult>> ToAsync<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<TArg1, TArg2, TArg3, TArg4, TArg5, TArg6, TArg7, TArg8, TArg9, TArg10, TArg11, TArg12, TArg13, TArg14, TArg15, TArg16, TResult>> function, System.Reactive.Concurrency.IScheduler scheduler) { }
@@ -2238,18 +2241,18 @@ public class static Qbservable
             where TResource : System.IDisposable { }
         public static System.Reactive.Linq.IQbservable<TResult> Using<TResult, TResource>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Threading.CancellationToken, System.Threading.Tasks.Task<TResource>>> resourceFactoryAsync, System.Linq.Expressions.Expression<System.Func<TResource, System.Threading.CancellationToken, System.Threading.Tasks.Task<System.IObservable<TResult>>>> observableFactoryAsync)
             where TResource : System.IDisposable { }
-        public static System.Reactive.Linq.IQbservable<TResult> When<TResult>(this System.Reactive.Linq.IQbservableProvider provider, params System.Reactive.Joins.QueryablePlan<>[] plans) { }
         public static System.Reactive.Linq.IQbservable<TResult> When<TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Collections.Generic.IEnumerable<System.Reactive.Joins.QueryablePlan<TResult>> plans) { }
+        public static System.Reactive.Linq.IQbservable<TResult> When<TResult>(this System.Reactive.Linq.IQbservableProvider provider, params System.Reactive.Joins.QueryablePlan<>[] plans) { }
         public static System.Reactive.Linq.IQbservable<TSource> Where<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, bool>> predicate) { }
         public static System.Reactive.Linq.IQbservable<TSource> Where<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, int, bool>> predicate) { }
         public static System.Reactive.Linq.IQbservable<TSource> While<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<bool>> condition, System.IObservable<TSource> source) { }
         public static System.Reactive.Linq.IQbservable<System.IObservable<TSource>> Window<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, int count) { }
-        public static System.Reactive.Linq.IQbservable<System.IObservable<TSource>> Window<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, int count, int skip) { }
         public static System.Reactive.Linq.IQbservable<System.IObservable<TSource>> Window<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan timeSpan) { }
+        public static System.Reactive.Linq.IQbservable<System.IObservable<TSource>> Window<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, int count, int skip) { }
         public static System.Reactive.Linq.IQbservable<System.IObservable<TSource>> Window<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan timeSpan, int count) { }
-        public static System.Reactive.Linq.IQbservable<System.IObservable<TSource>> Window<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan timeSpan, int count, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.IObservable<TSource>> Window<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan timeSpan, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.IObservable<TSource>> Window<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan timeSpan, System.TimeSpan timeShift) { }
+        public static System.Reactive.Linq.IQbservable<System.IObservable<TSource>> Window<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan timeSpan, int count, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.IObservable<TSource>> Window<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.TimeSpan timeSpan, System.TimeSpan timeShift, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Linq.IQbservable<System.IObservable<TSource>> Window<TSource, TWindowBoundary>(this System.Reactive.Linq.IQbservable<TSource> source, System.IObservable<TWindowBoundary> windowBoundaries) { }
         public static System.Reactive.Linq.IQbservable<System.IObservable<TSource>> Window<TSource, TWindowClosing>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<System.IObservable<TWindowClosing>>> windowClosingSelector) { }
@@ -2258,8 +2261,8 @@ public class static Qbservable
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> Zip<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
         public static System.Reactive.Linq.IQbservable<System.Collections.Generic.IList<TSource>> Zip<TSource>(this System.Reactive.Linq.IQbservableProvider provider, params System.IObservable<>[] sources) { }
         public static System.Reactive.Linq.IQbservable<TResult> Zip<TSource, TResult>(this System.Reactive.Linq.IQbservableProvider provider, System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources, System.Linq.Expressions.Expression<System.Func<System.Collections.Generic.IList<TSource>, TResult>> resultSelector) { }
-        public static System.Reactive.Linq.IQbservable<TResult> Zip<TSource1, TSource2, TResult>(this System.Reactive.Linq.IQbservable<TSource1> first, System.IObservable<TSource2> second, System.Linq.Expressions.Expression<System.Func<TSource1, TSource2, TResult>> resultSelector) { }
         public static System.Reactive.Linq.IQbservable<TResult> Zip<TSource1, TSource2, TResult>(this System.Reactive.Linq.IQbservable<TSource1> first, System.Collections.Generic.IEnumerable<TSource2> second, System.Linq.Expressions.Expression<System.Func<TSource1, TSource2, TResult>> resultSelector) { }
+        public static System.Reactive.Linq.IQbservable<TResult> Zip<TSource1, TSource2, TResult>(this System.Reactive.Linq.IQbservable<TSource1> first, System.IObservable<TSource2> second, System.Linq.Expressions.Expression<System.Func<TSource1, TSource2, TResult>> resultSelector) { }
         public static System.Reactive.Linq.IQbservable<TResult> Zip<TSource1, TSource2, TSource3, TResult>(this System.Reactive.Linq.IQbservable<TSource1> source1, System.IObservable<TSource2> source2, System.IObservable<TSource3> source3, System.Linq.Expressions.Expression<System.Func<TSource1, TSource2, TSource3, TResult>> resultSelector) { }
         public static System.Reactive.Linq.IQbservable<TResult> Zip<TSource1, TSource2, TSource3, TSource4, TResult>(this System.Reactive.Linq.IQbservable<TSource1> source1, System.IObservable<TSource2> source2, System.IObservable<TSource3> source3, System.IObservable<TSource4> source4, System.Linq.Expressions.Expression<System.Func<TSource1, TSource2, TSource3, TSource4, TResult>> resultSelector) { }
         public static System.Reactive.Linq.IQbservable<TResult> Zip<TSource1, TSource2, TSource3, TSource4, TSource5, TResult>(this System.Reactive.Linq.IQbservable<TSource1> source1, System.IObservable<TSource2> source2, System.IObservable<TSource3> source3, System.IObservable<TSource4> source4, System.IObservable<TSource5> source5, System.Linq.Expressions.Expression<System.Func<TSource1, TSource2, TSource3, TSource4, TSource5, TResult>> resultSelector) { }
@@ -2309,7 +2312,7 @@ public class static Qbservable
                     System.Linq.Expressions.Expression<System.Func<TSource1, TSource2, TSource3, TSource4, TSource5, TSource6, TSource7, TSource8, TSource9, TSource10, TSource11, TSource12, TSource13, TSource14, TSource15, TSource16, TResult>> resultSelector) { }
     }
     [System.Reactive.Linq.LocalQueryMethodImplementationType(typeof(System.Reactive.Linq.ObservableEx))]
-    public class static QbservableEx
+    public static class QbservableEx
     {
         [System.Reactive.Experimental]
         public static System.Reactive.Linq.IQbservable<System.Reactive.Unit> Create(this System.Reactive.Linq.IQbservableProvider provider, System.Linq.Expressions.Expression<System.Func<System.Collections.Generic.IEnumerable<System.IObservable<object>>>> iteratorMethod) { }
@@ -2320,10 +2323,10 @@ public class static QbservableEx
         [System.Reactive.Experimental]
         public static System.Reactive.Linq.IQbservable<TSource> Expand<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<TSource, System.IObservable<TSource>>> selector, System.Reactive.Concurrency.IScheduler scheduler) { }
         [System.Reactive.Experimental]
-        public static System.Reactive.Linq.IQbservable<TSource[]> ForkJoin<TSource>(this System.Reactive.Linq.IQbservableProvider provider, params System.IObservable<>[] sources) { }
-        [System.Reactive.Experimental]
         public static System.Reactive.Linq.IQbservable<TSource[]> ForkJoin<TSource>(this System.Reactive.Linq.IQbservableProvider provider, System.Collections.Generic.IEnumerable<System.IObservable<TSource>> sources) { }
         [System.Reactive.Experimental]
+        public static System.Reactive.Linq.IQbservable<TSource[]> ForkJoin<TSource>(this System.Reactive.Linq.IQbservableProvider provider, params System.IObservable<>[] sources) { }
+        [System.Reactive.Experimental]
         public static System.Reactive.Linq.IQbservable<TResult> ForkJoin<TSource1, TSource2, TResult>(this System.Reactive.Linq.IQbservable<TSource1> first, System.IObservable<TSource2> second, System.Linq.Expressions.Expression<System.Func<TSource1, TSource2, TResult>> resultSelector) { }
         [System.Reactive.Experimental]
         public static System.Reactive.Linq.IQbservable<TResult> Let<TSource, TResult>(this System.Reactive.Linq.IQbservable<TSource> source, System.Linq.Expressions.Expression<System.Func<System.IObservable<TSource>, System.IObservable<TResult>>> selector) { }
@@ -2336,11 +2339,11 @@ public class QueryDebugger
     {
         public QueryDebugger() { }
     }
-    public class static RemotingObservable
+    public static class RemotingObservable
     {
         public static System.IObservable<TSource> Remotable<TSource>(this System.IObservable<TSource> source) { }
-        public static System.IObservable<TSource> Remotable<TSource>(this System.IObservable<TSource> source, System.Runtime.Remoting.Lifetime.ILease lease) { }
         public static System.Reactive.Linq.IQbservable<TSource> Remotable<TSource>(this System.Reactive.Linq.IQbservable<TSource> source) { }
+        public static System.IObservable<TSource> Remotable<TSource>(this System.IObservable<TSource> source, System.Runtime.Remoting.Lifetime.ILease lease) { }
         public static System.Reactive.Linq.IQbservable<TSource> Remotable<TSource>(this System.Reactive.Linq.IQbservable<TSource> source, System.Runtime.Remoting.Lifetime.ILease lease) { }
     }
 }
@@ -2357,14 +2360,14 @@ public class DefaultSystemClock : System.Reactive.PlatformServices.ISystemClock
         public DefaultSystemClock() { }
         public System.DateTimeOffset UtcNow { get; }
     }
-    public class static EnlightenmentProvider
+    public static class EnlightenmentProvider
     {
         public static bool EnsureLoaded() { }
     }
-    public class static HostLifecycleService
+    public static class HostLifecycleService
     {
-        public event System.EventHandler<System.Reactive.PlatformServices.HostResumingEventArgs> Resuming;
-        public event System.EventHandler<System.Reactive.PlatformServices.HostSuspendingEventArgs> Suspending;
+        public  static  event System.EventHandler<System.Reactive.PlatformServices.HostResumingEventArgs> Resuming;
+        public  static  event System.EventHandler<System.Reactive.PlatformServices.HostSuspendingEventArgs> Suspending;
         public static void AddRef() { }
         public static void Release() { }
     }
@@ -2382,12 +2385,12 @@ public interface IExceptionServices
     }
     public interface IHostLifecycleNotifications
     {
-        public event System.EventHandler<System.Reactive.PlatformServices.HostResumingEventArgs> Resuming;
-        public event System.EventHandler<System.Reactive.PlatformServices.HostSuspendingEventArgs> Suspending;
+        event System.EventHandler<System.Reactive.PlatformServices.HostResumingEventArgs> Resuming;
+        event System.EventHandler<System.Reactive.PlatformServices.HostSuspendingEventArgs> Suspending;
     }
     public interface INotifySystemClockChanged
     {
-        public event System.EventHandler<System.Reactive.PlatformServices.SystemClockChangedEventArgs> SystemClockChanged;
+        event System.EventHandler<System.Reactive.PlatformServices.SystemClockChangedEventArgs> SystemClockChanged;
     }
     public interface IPlatformEnlightenmentProvider
     {
@@ -2403,12 +2406,12 @@ public class PeriodicTimerSystemClockMonitor : System.Reactive.PlatformServices.
         public PeriodicTimerSystemClockMonitor(System.TimeSpan period) { }
         public event System.EventHandler<System.Reactive.PlatformServices.SystemClockChangedEventArgs> SystemClockChanged;
     }
-    public class static PlatformEnlightenmentProvider
+    public static class PlatformEnlightenmentProvider
     {
         [System.Obsolete("This mechanism will be removed in the next major version", false)]
         public static System.Reactive.PlatformServices.IPlatformEnlightenmentProvider Current { get; set; }
     }
-    public class static SystemClock
+    public static class SystemClock
     {
         public static System.DateTimeOffset UtcNow { get; }
         public static void AddRef() { }
@@ -2461,12 +2464,12 @@ public interface ISubject<in TSource, out TResult> : System.IObservable<TResult>
     public sealed class ReplaySubject<T> : System.Reactive.Subjects.SubjectBase<T>
     {
         public ReplaySubject() { }
-        public ReplaySubject(System.Reactive.Concurrency.IScheduler scheduler) { }
         public ReplaySubject(int bufferSize) { }
-        public ReplaySubject(int bufferSize, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public ReplaySubject(System.Reactive.Concurrency.IScheduler scheduler) { }
         public ReplaySubject(System.TimeSpan window) { }
-        public ReplaySubject(System.TimeSpan window, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public ReplaySubject(int bufferSize, System.Reactive.Concurrency.IScheduler scheduler) { }
         public ReplaySubject(int bufferSize, System.TimeSpan window) { }
+        public ReplaySubject(System.TimeSpan window, System.Reactive.Concurrency.IScheduler scheduler) { }
         public ReplaySubject(int bufferSize, System.TimeSpan window, System.Reactive.Concurrency.IScheduler scheduler) { }
         public override bool HasObservers { get; }
         public override bool IsDisposed { get; }
@@ -2476,14 +2479,14 @@ public sealed class ReplaySubject<T> : System.Reactive.Subjects.SubjectBase<T>
         public override void OnNext(T value) { }
         public override System.IDisposable Subscribe(System.IObserver<T> observer) { }
     }
-    public class static Subject
+    public static class Subject
     {
-        public static System.Reactive.Subjects.ISubject<TSource, TResult> Create<TSource, TResult>(System.IObserver<TSource> observer, System.IObservable<TResult> observable) { }
         public static System.Reactive.Subjects.ISubject<T> Create<T>(System.IObserver<T> observer, System.IObservable<T> observable) { }
-        public static System.Reactive.Subjects.ISubject<TSource, TResult> Synchronize<TSource, TResult>(System.Reactive.Subjects.ISubject<TSource, TResult> subject) { }
+        public static System.Reactive.Subjects.ISubject<TSource, TResult> Create<TSource, TResult>(System.IObserver<TSource> observer, System.IObservable<TResult> observable) { }
         public static System.Reactive.Subjects.ISubject<TSource> Synchronize<TSource>(System.Reactive.Subjects.ISubject<TSource> subject) { }
-        public static System.Reactive.Subjects.ISubject<TSource, TResult> Synchronize<TSource, TResult>(System.Reactive.Subjects.ISubject<TSource, TResult> subject, System.Reactive.Concurrency.IScheduler scheduler) { }
         public static System.Reactive.Subjects.ISubject<TSource> Synchronize<TSource>(System.Reactive.Subjects.ISubject<TSource> subject, System.Reactive.Concurrency.IScheduler scheduler) { }
+        public static System.Reactive.Subjects.ISubject<TSource, TResult> Synchronize<TSource, TResult>(System.Reactive.Subjects.ISubject<TSource, TResult> subject) { }
+        public static System.Reactive.Subjects.ISubject<TSource, TResult> Synchronize<TSource, TResult>(System.Reactive.Subjects.ISubject<TSource, TResult> subject, System.Reactive.Concurrency.IScheduler scheduler) { }
     }
     public abstract class SubjectBase<T> : System.IDisposable, System.IObservable<T>, System.IObserver<T>, System.Reactive.Subjects.ISubject<T>, System.Reactive.Subjects.ISubject<T, T>
     {
@@ -2510,7 +2513,7 @@ public sealed class Subject<T> : System.Reactive.Subjects.SubjectBase<T>
 }
 namespace System.Reactive.Threading.Tasks
 {
-    public class static TaskObservableExtensions
+    public static class TaskObservableExtensions
     {
         public static System.IObservable<System.Reactive.Unit> ToObservable(this System.Threading.Tasks.Task task) { }
         public static System.IObservable<System.Reactive.Unit> ToObservable(this System.Threading.Tasks.Task task, System.Reactive.Concurrency.IScheduler scheduler) { }
@@ -2534,11 +2537,11 @@ public struct TaskObservableMethodBuilder<T>
         public void AwaitUnsafeOnCompleted<TAwaiter, TStateMachine>(ref TAwaiter awaiter, ref TStateMachine stateMachine)
             where TAwaiter : System.Runtime.CompilerServices.ICriticalNotifyCompletion
             where TStateMachine : System.Runtime.CompilerServices.IAsyncStateMachine { }
-        public static System.Runtime.CompilerServices.TaskObservableMethodBuilder<T> Create() { }
         public void SetException(System.Exception exception) { }
         public void SetResult(T result) { }
         public void SetStateMachine(System.Runtime.CompilerServices.IAsyncStateMachine stateMachine) { }
         public void Start<TStateMachine>(ref TStateMachine stateMachine)
             where TStateMachine : System.Runtime.CompilerServices.IAsyncStateMachine { }
+        public static System.Runtime.CompilerServices.TaskObservableMethodBuilder<T> Create() { }
     }
-}
+}
\ No newline at end of file
diff --git a/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.Testing.approved.cs b/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.Testing.approved.cs
index 1304bcd610..7c393f8996 100644
--- a/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.Testing.approved.cs
+++ b/Rx.NET/Source/tests/Tests.System.Reactive.ApiApprovals/Api/ApiApprovalTests.Testing.approved.cs
@@ -1,6 +1,6 @@
-[assembly: System.CLSCompliantAttribute(true)]
-[assembly: System.Runtime.InteropServices.ComVisibleAttribute(false)]
-[assembly: System.Runtime.Versioning.TargetFrameworkAttribute(".NETFramework,Version=v4.6", FrameworkDisplayName=".NET Framework 4.6")]
+[assembly: System.CLSCompliant(true)]
+[assembly: System.Runtime.InteropServices.ComVisible(false)]
+[assembly: System.Runtime.Versioning.TargetFramework(".NETFramework,Version=v4.6", FrameworkDisplayName=".NET Framework 4.6")]
 namespace Microsoft.Reactive.Testing
 {
     public interface ITestableObservable<T> : System.IObservable<T>
@@ -12,11 +12,11 @@ public interface ITestableObserver<T> : System.IObserver<T>
     {
         System.Collections.Generic.IList<Microsoft.Reactive.Testing.Recorded<System.Reactive.Notification<T>>> Messages { get; }
     }
-    public class static ReactiveAssert
+    public static class ReactiveAssert
     {
         public static void AreElementsEqual<T>(System.Collections.Generic.IEnumerable<T> expected, System.Collections.Generic.IEnumerable<T> actual) { }
-        public static void AreElementsEqual<T>(System.Collections.Generic.IEnumerable<T> expected, System.Collections.Generic.IEnumerable<T> actual, string message) { }
         public static void AreElementsEqual<T>(System.IObservable<T> expected, System.IObservable<T> actual) { }
+        public static void AreElementsEqual<T>(System.Collections.Generic.IEnumerable<T> expected, System.Collections.Generic.IEnumerable<T> actual, string message) { }
         public static void AreElementsEqual<T>(System.IObservable<T> expected, System.IObservable<T> actual, string message) { }
         public static void AssertEqual<T>(this System.Collections.Generic.IEnumerable<T> actual, System.Collections.Generic.IEnumerable<T> expected) { }
         public static void AssertEqual<T>(this System.Collections.Generic.IEnumerable<T> actual, params T[] expected) { }
@@ -42,12 +42,12 @@ public class ReactiveTest
         public static Microsoft.Reactive.Testing.Recorded<System.Reactive.Notification<T>> OnError<T>(long ticks, System.Func<System.Exception, bool> predicate) { }
         public static Microsoft.Reactive.Testing.Recorded<System.Reactive.Notification<T>> OnError<T>(long ticks, System.Exception exception, T witness) { }
         public static Microsoft.Reactive.Testing.Recorded<System.Reactive.Notification<T>> OnError<T>(long ticks, System.Func<System.Exception, bool> predicate, T witness) { }
-        public static Microsoft.Reactive.Testing.Recorded<System.Reactive.Notification<T>> OnNext<T>(long ticks, T value) { }
         public static Microsoft.Reactive.Testing.Recorded<System.Reactive.Notification<T>> OnNext<T>(long ticks, System.Func<T, bool> predicate) { }
-        public static Microsoft.Reactive.Testing.Subscription Subscribe(long start, long end) { }
+        public static Microsoft.Reactive.Testing.Recorded<System.Reactive.Notification<T>> OnNext<T>(long ticks, T value) { }
         public static Microsoft.Reactive.Testing.Subscription Subscribe(long start) { }
+        public static Microsoft.Reactive.Testing.Subscription Subscribe(long start, long end) { }
     }
-    [System.Diagnostics.DebuggerDisplayAttribute("{Value}@{Time}")]
+    [System.Diagnostics.DebuggerDisplay("{Value}@{Time}")]
     public struct Recorded<T> : System.IEquatable<Microsoft.Reactive.Testing.Recorded<T>>
     {
         public Recorded(long time, T value) { }
@@ -57,10 +57,10 @@ public struct Recorded<T> : System.IEquatable<Microsoft.Reactive.Testing.Recorde
         public override bool Equals(object obj) { }
         public override int GetHashCode() { }
         public override string ToString() { }
-        public static bool ==(Microsoft.Reactive.Testing.Recorded<T> left, Microsoft.Reactive.Testing.Recorded<T> right) { }
         public static bool !=(Microsoft.Reactive.Testing.Recorded<T> left, Microsoft.Reactive.Testing.Recorded<T> right) { }
+        public static bool ==(Microsoft.Reactive.Testing.Recorded<T> left, Microsoft.Reactive.Testing.Recorded<T> right) { }
     }
-    [System.Diagnostics.DebuggerDisplayAttribute("({Subscribe}, {Unsubscribe})")]
+    [System.Diagnostics.DebuggerDisplay("({Subscribe}, {Unsubscribe})")]
     public struct Subscription : System.IEquatable<Microsoft.Reactive.Testing.Subscription>
     {
         public const long Infinite = 9223372036854775807;
@@ -72,10 +72,10 @@ public struct Subscription : System.IEquatable<Microsoft.Reactive.Testing.Subscr
         public override bool Equals(object obj) { }
         public override int GetHashCode() { }
         public override string ToString() { }
-        public static bool ==(Microsoft.Reactive.Testing.Subscription left, Microsoft.Reactive.Testing.Subscription right) { }
         public static bool !=(Microsoft.Reactive.Testing.Subscription left, Microsoft.Reactive.Testing.Subscription right) { }
+        public static bool ==(Microsoft.Reactive.Testing.Subscription left, Microsoft.Reactive.Testing.Subscription right) { }
     }
-    [System.Diagnostics.DebuggerDisplayAttribute("\\{ Clock = {Clock} Now = {Now.ToString(\"O\")} \\}")]
+    [System.Diagnostics.DebuggerDisplay("\\{ Clock = {Clock} Now = {Now.ToString(\"O\")} \\}")]
     public class TestScheduler : System.Reactive.Concurrency.VirtualTimeScheduler<long, long>
     {
         public TestScheduler() { }
@@ -84,9 +84,9 @@ public class TestScheduler : System.Reactive.Concurrency.VirtualTimeScheduler<lo
         public Microsoft.Reactive.Testing.ITestableObservable<T> CreateHotObservable<T>(params Microsoft.Reactive.Testing.Recorded<>[] messages) { }
         public Microsoft.Reactive.Testing.ITestableObserver<T> CreateObserver<T>() { }
         public override System.IDisposable ScheduleAbsolute<TState>(TState state, long dueTime, System.Func<System.Reactive.Concurrency.IScheduler, TState, System.IDisposable> action) { }
-        public Microsoft.Reactive.Testing.ITestableObserver<T> Start<T>(System.Func<System.IObservable<T>> create, long created, long subscribed, long disposed) { }
-        public Microsoft.Reactive.Testing.ITestableObserver<T> Start<T>(System.Func<System.IObservable<T>> create, long disposed) { }
         public Microsoft.Reactive.Testing.ITestableObserver<T> Start<T>(System.Func<System.IObservable<T>> create) { }
+        public Microsoft.Reactive.Testing.ITestableObserver<T> Start<T>(System.Func<System.IObservable<T>> create, long disposed) { }
+        public Microsoft.Reactive.Testing.ITestableObserver<T> Start<T>(System.Func<System.IObservable<T>> create, long created, long subscribed, long disposed) { }
         protected override System.DateTimeOffset ToDateTimeOffset(long absolute) { }
         protected override long ToRelative(System.TimeSpan timeSpan) { }
     }