namespace Microsoft.AspNetCore.Identity
{
    public abstract class UserStoreBase<TUser, TKey, TUserClaim, TUserLogin, TUserToken> : IQueryableUserStore<TUser!>, IUserAuthenticationTokenStore<TUser!>, IUserAuthenticatorKeyStore<TUser!>, IUserClaimStore<TUser!>, IUserEmailStore<TUser!>, IUserLockoutStore<TUser!>, IUserLoginStore<TUser!>, IUserPasswordStore<TUser!>, IUserPhoneNumberStore<TUser!>, IUserSecurityStampStore<TUser!>, IUserStore<TUser!>, IUserTwoFactorRecoveryCodeStore<TUser!>, IUserTwoFactorStore<TUser!>, IDisposable
        where TUser, IdentityUser<TKey>!
        where TKey, IEquatable<TKey>!
        where TUserClaim, new(), IdentityUserClaim<TKey>!
        where TUserLogin, new(), IdentityUserLogin<TKey>!
        where TUserToken, new(), IdentityUserToken<TKey>!
    {
        protected abstract Task<TUser?>! FindUserAsync(TKey userId, CancellationToken cancellationToken);
    }
}