public sealed class ContentLength : Header, 
	ISIPCloneable<ContentLength>

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

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

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