public async Task <EchoResponse> ServiceMethod(EchoUrlRequest request)
        {
            await LongRunningTask.Instance();

            return(new EchoResponse {
                TokenEcho = request.Token
            });
        }
		public async Task<EchoResponse> ServiceMethod(EchoUrlRequest request)
		{
			await LongRunningTask.Instance();
			return new EchoResponse { TokenEcho = request.Token };
		}