C# (CSharp) IBirthdayRepository примеры использования

Пример #1

 public HelloController(
     IBirthdayRepository birthdayRepository,
     IBirthdayCalculator birthdayCalculator)
 {
     this.birthdayRepository = birthdayRepository;
     this.birthdayCalculator = birthdayCalculator;
 }

Пример #2

 public BirthdayService(IBirthdayRepository birthdayRepository)
 {
     this.birthdayRepository = birthdayRepository ?? throw new ArgumentNullException(nameof(birthdayRepository));
 }