Opc.Ua.Server.StandardServer.UnregisterNodes C# (CSharp) Method

        public override ResponseHeader UnregisterNodes(RequestHeader requestHeader, NodeIdCollection nodesToUnregister)
        {
            OperationContext context = ValidateRequest(requestHeader, RequestType.UnregisterNodes);

            try
            {
                if (nodesToUnregister == null || nodesToUnregister.Count == 0)
                {
                    throw new ServiceResultException(StatusCodes.BadNothingToDo);
                }

                m_serverInternal.NodeManager.UnregisterNodes(
                    context,
                    nodesToUnregister);

                return CreateResponse(requestHeader, context.StringTable);
            }
            catch (ServiceResultException e)
            {
                lock (ServerInternal.DiagnosticsLock)
                {
                    ServerInternal.ServerDiagnostics.RejectedRequestsCount++;

                    if (IsSecurityError(e.StatusCode))
                    {
                        ServerInternal.ServerDiagnostics.SecurityRejectedRequestsCount++;
                    }
                }

                throw TranslateException(context, e);
            }
            finally
            {
                OnRequestComplete(context);
            }  
        }