System.Reactive.Linq.ObservableImpl.GroupJoin<TLeft, TRight, TLeftDuration, TRightDuration, TResult>
sealed class GroupJoin<TLeft, TRight, TLeftDuration, TRightDuration, TResult> : Producer<TResult, _<TLeft, TRight, TLeftDuration, TRightDuration, TResult>>
namespace System.Reactive.Linq.ObservableImpl
{
}