code: def test_silverkite_constants():
      silverkite = SilverkiteForecast()
      assert (
          silverkite._silverkite_seasonality_enum
          is SilverkiteSeasonalityEnum
      )
  
file_path: greykite/greykite/tests/algo/forecast/silverkite/test_silverkite_constants.py
imports: from typing import Type
  from overrides import overrides
  from greykite.algo.forecast.silverkite.constants.silverkite_column import SilverkiteColumn
  from greykite.algo.forecast.silverkite.constants.silverkite_component import SilverkiteComponentsEnum
  from greykite.algo.forecast.silverkite.constants.silverkite_constant import SilverkiteConstant
  from greykite.algo.forecast.silverkite.constants.silverkite_holiday import SilverkiteHoliday
  from greykite.algo.forecast.silverkite.constants.silverkite_seasonality import SilverkiteSeasonalityEnum
  from greykite.algo.forecast.silverkite.constants.silverkite_time_frequency import SilverkiteTimeFrequencyEnum
  from greykite.algo.forecast.silverkite.forecast_silverkite import SilverkiteForecast
  from greykite.algo.forecast.silverkite.forecast_simple_silverkite import SimpleSilverkiteForecast
  from greykite.common.enums import FrequencyEnum
  from greykite.common.enums import SeasonalityEnum
label_desc: Use image node_id 4 for calling a global function with example usage: test_silverkite_constants() without return types