public BookIssueController(IBookIssueService bookIssueService)
 {
     _bookIssueService = bookIssueService;
 }
 public ManagingLibraryController(IBookIssueService bookIssueService, IReturnBookService returnBookService)
 {
     _bookIssueService  = bookIssueService;
     _returnBookService = returnBookService;
 }