Code Smell Exercise: https://qualitycoding.org/code-smells-exercise/

Pirate.swift

protocol DualTextFieldViewModel {
    var field1Hint: String { get }
    var field2Hint: String { get }
}

struct NinjaViewModel: DualTextFieldViewModel {
    let field1Hint = "Leaf"
    let field2Hint = "Nine tail fox"
}

struct PirateViewModel: DualTextFieldViewModel {
    let field1Hint = "Skull and Cross bones"
    let field2Hint = "Wooden leg"
}

class ViewController: UIViewController {
    let viewModel: DualTextFieldViewModel

    override func viewDidLoad() {
        setupDualTextFieldView()
    }
}