public static int GetHeight<T>(
	T tree,
	Func<T, IEnumerable<T>> getChildren
)
where T : class

Public Shared Function GetHeight(Of T As Class) ( 
	tree As T,
	getChildren As Func(Of T, IEnumerable(Of T))
) As Integer

public:
generic<typename T>
where T : ref class
static int GetHeight(
	T tree, 
	Func<T, IEnumerable<T>^>^ getChildren
)

static member GetHeight : 
        tree : 'T * 
        getChildren : Func<'T, IEnumerable<'T>> -> int  when 'T : not struct