code: def test_simple_time_frequency_enum():
      """Tests SimpleTimeFrequencyEnum accessors"""
      assert SimpleTimeFrequencyEnum.MINUTE.value.default_horizon == 60
      assert (
          SimpleTimeFrequencyEnum.MINUTE.value.seconds_per_observation
          == 60
      )
      assert SimpleTimeFrequencyEnum.MINUTE.value.valid_seas == {
          SeasonalityEnum.DAILY_SEASONALITY.name,
          SeasonalityEnum.WEEKLY_SEASONALITY.name,
          SeasonalityEnum.MONTHLY_SEASONALITY.name,
          SeasonalityEnum.QUARTERLY_SEASONALITY.name,
          SeasonalityEnum.YEARLY_SEASONALITY.name,
      }
      assert SimpleTimeFrequencyEnum.MONTH.value.valid_seas == {
          SeasonalityEnum.QUARTERLY_SEASONALITY.name,
          SeasonalityEnum.YEARLY_SEASONALITY.name,
      }
  
      assert SimpleTimeFrequencyEnum.HOUR.value.default_horizon == 24
      assert SimpleTimeFrequencyEnum.DAY.value.default_horizon == 30
      assert SimpleTimeFrequencyEnum.WEEK.value.default_horizon == 12
      assert SimpleTimeFrequencyEnum.MONTH.value.default_horizon == 12
      assert SimpleTimeFrequencyEnum.QUARTER.value.default_horizon == 12
      assert SimpleTimeFrequencyEnum.YEAR.value.default_horizon == 2
      assert (
          SimpleTimeFrequencyEnum.MULTIYEAR.value.default_horizon == 2
      )
  
imports: from greykite.common.enums import SeasonalityEnum
  from greykite.common.enums import SimpleTimeFrequencyEnum
  from greykite.common.enums import TimeEnum
label_desc: Use image node_id 3 for calling a global function with example usage: test_simple_time_frequency_enum() without return types