public void TestMethod1()
        {
            var sa_service = new Serviceaccount("CalendarLiblaryTest", Serviceaccount.Access.FULLACCSESS, "./Auth/ServiceAccount.json");

            Serviceaccount.ReadingRequest request = new GoogleCalendar.ReadingRequest();
            request.calendar_id     = "*****@*****.**";
            request.number_of_event = 10;

            var sa_list = sa_service.GetEventList(request);

            foreach (var item in sa_list)
            {
                Console.WriteLine(item.summary);
            }

            var auth_service = new Myaccount("calendarLibraryTest", Myaccount.Access.FULLACCSESS, "./Auth/OAuth.json");
            //auth_service.ReAuthenticate();
            var ma_list = auth_service.GetEventList(request);

            foreach (var item in ma_list)
            {
                Console.WriteLine(item.summary);
            }
            var co = auth_service.GetColorList();
        }