code: def _return_data_with_without_period_index():
      """Returns one dataset with period index and one with int index"""
      datasets = [
          get_data("airline"),
          get_data("10", folder="time_series/white_noise"),
      ]
      return datasets
  
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 14 for calling a global function with example usage: _return_data_with_without_period_index() and returns: datasets