System.Reactive.Linq.ObservableImpl.AverageDoubleNullable sealed class AverageDoubleNullable : Producer<double?, _> Documentation Code namespace System.Reactive.Linq.ObservableImpl { internal sealed class AverageDoubleNullable : Producer<double?, AverageDoubleNullable._> { public AverageDoubleNullable(IObservable<double?> source); } }