code: def calculate_sun_from_hoy(self, hoy, is_solar_time=False):
          
          datetime = DateTime.from_hoy(hoy, self.is_leap_year)
          return self.calculate_sun_from_date_time(datetime, is_solar_time)
docs: Get Sun data for an hour of the year.
  
          Args:
              datetime: Ladybug datetime
              is_solar_time: A boolean to indicate if the input hour is solar time
                  (Default: False).
  
          Returns:
              A sun object for this particular time