Calculator.Service.CalculatorService.Add C# (CSharp) Метод

        public Task<double> Add(double n1, double n2)
        {
            var result = n1 + n2;
            ServiceEventSource.Current.ServiceMessage(this.context, "Received Add({0},{1})", n1, n2);
            ServiceEventSource.Current.ServiceMessage(this.context, "Return: {0}", result);
            return Task.FromResult(result);
        }