public class RequestLine : ISIPMessagePart, 
	ISIPCloneable<RequestLine>

Public Class RequestLine
	Implements ISIPMessagePart, ISIPCloneable(Of RequestLine)

public ref class RequestLine : ISIPMessagePart, 
	ISIPCloneable<RequestLine^>

type RequestLine =  
    class
        interface ISIPMessagePart
        interface ISIPCloneable<RequestLine>
    end