public virtual void SignOut(SignOutContext context)
        {
            if (ShouldHandleScheme(context.AuthenticationScheme))
            {
                SignInContext = null;
                SignOutContext = context;
                context.Accept();
            }

            if (PriorHandler != null)
            {
                PriorHandler.SignOut(context);
            }
        }
 public Task SignOutAsync(SignOutContext context)
 {
     SignedIn = false;
     context.Accept();
     return Task.FromResult(0);
 }
        public async Task SignOutAsync(SignOutContext context)
        {
            if (ShouldHandleScheme(context.AuthenticationScheme))
            {
                SignOutAccepted = true;
                await HandleSignOutAsync(context);
                context.Accept();
            }

            if (PriorHandler != null)
            {
                await PriorHandler.SignOutAsync(context);
            }
        }