public static Stream <T> Split <T, TCollection>(Stream <TCollection> s)
where TCollection : IEnumerable <T> =>
OperationalInternal.SplitImpl <T, TCollection>(s);
public static Stream <T> Value <T>(Behavior <T> b) => OperationalInternal.ValueImpl(b);
public static Stream <T> Defer <T>(Stream <T> s) => OperationalInternal.DeferImpl(s);
public static Stream <T> Updates <T>(Behavior <T> b) => OperationalInternal.UpdatesImpl(b);
