using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ClassLibrary1;

public interface IAuthorStorageContract
{
    List<Author> GetList();
    Author? GetElementById(string id);
    Author? GetElementByFIO(string fio);
    Author? GetElementByEmail(string email);
    void AddElement(Author author);
    void UpdElement(Author author);
    void DelElement(string id);
}