<ExtensionAttribute()>
Public Overloads Shared Function Memoize
    (Of A1,A2,A3,R)( _
   ByVal f As Func(Of A1,A2,A3,R) _
) As Func(Of A1,A2,A3,R)

Dim f As Func(Of A1,A2,A3,R)
Dim value As Func(Of A1,A2,A3,R)
 
value = MemoFns.Memoize(Of A1, A2, A3, R)(f)

[ExtensionAttribute()]
public static Func<A1,A2,A3,R> Memoize<A1,A2,A3,R>( 
   Func<A1,A2,A3,R> f
)

[ExtensionAttribute()]
public:
static Func<A1^,A2^,A3^,R^>^ Memoizegeneric<typename A1>
generic<typename A2>
generic<typename A3>
generic<typename R>
( 
   Func<A1^,A2^,A3^,R^>^ f
)