public static IEnumerable<TSource> FromHierarchy<TSource>(
	this TSource source,
	Func<TSource, TSource> nextItem
)
where TSource : class

<ExtensionAttribute>
Public Shared Function FromHierarchy(Of TSource As Class) ( 
	source As TSource,
	nextItem As Func(Of TSource, TSource)
) As IEnumerable(Of TSource)

public:
[ExtensionAttribute]
generic<typename TSource>
where TSource : ref class
static IEnumerable<TSource>^ FromHierarchy(
	TSource source, 
	Func<TSource, TSource>^ nextItem
)

[<ExtensionAttribute>]
static member FromHierarchy : 
        source : 'TSource * 
        nextItem : Func<'TSource, 'TSource> -> IEnumerable<'TSource>  when 'TSource : not struct