code: def _get_seasonal_values_alphanumeric():
      """Check if frequency is alphanumeric and process it as needed"""
      choice_list = ["10", "20", "30", "40", "50", "60"]
      return [
          (random.choice(choice_list), k, v.value)
          for k, v in SeasonalPeriod.__members__.items()
      ]
  
imports: import random
  import numpy
  import pandas
  from pandas.testing import assert_frame_equal
  from sktime.forecasting.base import ForecastingHorizon
  from pycaret.containers.models.time_series import get_all_model_containers
  from pycaret.datasets import get_data
  from pycaret.time_series import TSForecastingExperiment
  from pycaret.utils.time_series import SeasonalPeriod
label_desc: Use image node_id 7 for calling a global function with example usage: _get_seasonal_values_alphanumeric() and returns: unknown