UserRepository.cs

public async Task<List<User>> GetUsersAsync()
{
    List<User> output = new()
    {
        new() { FirstName = "William", LastName = "Jackson" },
        new() { FirstName = "Maria", LastName = "Moody" },
        new() { FirstName = "Sarah", LastName = "King" },
        new() { FirstName = "Gregory", LastName = "Estrada" },
        new() { FirstName = "Juan", LastName = "Russell" },
        new() { FirstName = "James", LastName = "Bryant" },
        new() { FirstName = "Patrick", LastName = "Mullins" },
        new() { FirstName = "Sandra", LastName = "Fleming" },
        new() { FirstName = "Miguel", LastName = "Ramsey" },
        new() { FirstName = "Monica", LastName = "Howell" }
    };

    await Task.Delay(3000); // simulating data access time

    return output;
}