public sealed class Authorization : Header, 
	ISIPCloneable<Authorization>

Public NotInheritable Class Authorization
	Inherits Header
	Implements ISIPCloneable(Of Authorization)

public ref class Authorization sealed : public Header, 
	ISIPCloneable<Authorization^>

[<SealedAttribute>]
type Authorization =  
    class
        inherit Header
        interface ISIPCloneable<Authorization>
    end