var section = Configuration.GetSection("FormsAuthentication");var faOptions = new FormsAuthenticationOptions(){    DecryptionKey = section.GetValue<string>("DecryptionKey"),    ValidationKey = section.GetValue<string>("ValidationKey"),    EncryptionMethod = section.GetValue<EncryptionMethod>("EncryptionMethod"),    ValidationMethod = section.GetValue<ValidationMethod>("ValidationMethod"),};services    .AddAuthentication(options =>    {        options.DefaultAuthenticateScheme = CookieAuthenticationDefaults.AuthenticationScheme;        options.DefaultChallengeScheme = CookieAuthenticationDefaults.AuthenticationScheme;        options.DefaultSignInScheme = CookieAuthenticationDefaults.AuthenticationScheme;    })    .AddCookie(options =>    {        options.Cookie.Name = section.GetValue<string>("CookieName");        options.AccessDeniedPath = "/Login/Upgrade/";        options.LoginPath = "/Login/";        options.ReturnUrlParameter = "returnurl";options.TicketDataFormat = new FormsAuthenticationDataFormat<AuthenticationTicket>(            faOptions,            FormsAuthHelper.ConvertCookieToTicket,            FormsAuthHelper.ConvertTicketToCookie            );    });