Public Overridable Function ActivateSession( _
   ByVal context As OperationContext, _
   ByVal authenticationToken As NodeId, _
   ByVal clientSignature As SignatureData, _
   ByVal clientSoftwareCertificates As List(Of SoftwareCertificate), _
   ByVal userIdentityToken As ExtensionObject, _
   ByVal userTokenSignature As SignatureData, _
   ByVal localeIds As StringCollection, _
   ByRef serverNonce As Byte() _
) As Boolean

public virtual bool ActivateSession( 
   OperationContext context,
   NodeId authenticationToken,
   SignatureData clientSignature,
   List<SoftwareCertificate> clientSoftwareCertificates,
   ExtensionObject userIdentityToken,
   SignatureData userTokenSignature,
   StringCollection localeIds,
   out byte[] serverNonce
)