docs: def _year_from_2digits(short_year, current_year):
          """
          Converts a relative 2-digit year to an absolute 4-digit year
          :param short_year: the relative year
          :param current_year: the current year
          :return: the absolute year
          """
          if short_year < 100:
              short_year += current_year - (current_year % 100)
              if abs(short_year - current_year) >= 50:
                  if short_year < current_year:
                      return short_year + 100
                  else:
                      return short_year - 100
          return short_year