N::User {
    user_field: String,
}

N::Admin {
    admin_field: String,
}

N::Guest {
    guest_field: String,
}

// Enum::UserType {
//     NormalUser(User),
//     AdminUser(Admin),
//     GuestUser(Guest),
// }
// 
// QUERY GetAdmins() => 
//     users <- N<UserType>::MATCH|_|{
//         UserType::NormalUser(user) => user::{user_field},
//         UserType::AdminUser(admin) => admin::{admin_field},
//         UserType::GuestUser(guest) => guest::{guest_field}
//     }
//     RETURN users