public Specialty GetSpecialty(RequestDto requestDto) { if (!_specialtyRepository.ExistsSpecialty(requestDto.GetId())) { Notification.Raise(NotificationEvent.DefaultBuilder .WithNotFoundStatus() .WithMessage(AppConsts.LocalizationSourceName, Specialty.Error.CouldNotFindSpecialty) .Build()); return(null); } return(_specialtyRepository.GetSpecialty(requestDto)); }