namespace Microsoft.AspNetCore.Identity.EntityFrameworkCore
{
    public abstract class IdentityDbContext<TUser, TRole, TKey, TUserClaim, TUserRole, TUserLogin, TRoleClaim, TUserToken> : IdentityUserContext<TUser!, TKey, TUserClaim!, TUserLogin!, TUserToken!>
        where TUser, IdentityUser<TKey>!
        where TRole, IdentityRole<TKey>!
        where TKey, IEquatable<TKey>!
        where TUserClaim, IdentityUserClaim<TKey>!
        where TUserRole, IdentityUserRole<TKey>!
        where TUserLogin, IdentityUserLogin<TKey>!
        where TRoleClaim, IdentityRoleClaim<TKey>!
        where TUserToken, IdentityUserToken<TKey>!
    {
        public virtual DbSet<TUserRole!>! UserRoles { get; set; }
    }
}