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Dec 10th, 2018
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  1. namespace Services
  2. {
  3. public class BookService : BaseService
  4. {
  5. public Book Get(int id);
  6. public void Save(Book book);
  7. public bool Delete(Book book);
  8. public int Add(Book book);
  9. public IList<int> DeleteUnused();
  10. public IList<Book> FindByAuthor(Author author);
  11. }
  12. }
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