private async Task <IEnumerable <Holiday> > GetHolidaysByDateAsync(string countryIsoCode, DateTime holidayDate) { if (!await HolidaysAlreadyExist(countryIsoCode, holidayDate.Year)) { await CreateHoliday(countryIsoCode, holidayDate.Year); } return(await HolidayRepository.GetHolidaysByDateAsync(countryIsoCode, holidayDate)); }