namespace Microsoft.AspNetCore.Identity
{
    public class TwoFactorSecurityStampValidator<TUser> : SecurityStampValidator<TUser>, ISecurityStampValidator, ITwoFactorSecurityStampValidator
        where TUser, class
    {
        public TwoFactorSecurityStampValidator(IOptions<SecurityStampValidatorOptions> options, SignInManager<TUser> signInManager, ISystemClock clock);
    }
}