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));
}
