code: def test_check_and_make_directories(DIRS: list[str]) -> None:
      """
      Tests the creation of directories
      parameters:
      ----------
      DIRS : a List of str, which indicate the name of the folders to create
      """
      assert isinstance(DIRS, list)
      check_and_make_directories(DIRS)
      for dir in DIRS:
          assert os.path.exists(dir)
  
imports: from __future__ import annotations
  import os
  from typing import List
  import pandas
  import pytest
  from finrl import config
  from finrl import config_tickers
  from finrl.config import DATA_SAVE_DIR
  from finrl.config import RESULTS_DIR
  from finrl.config import TENSORBOARD_LOG_DIR
  from finrl.config import TRAINED_MODEL_DIR
  from finrl.main import check_and_make_directories
  from finrl.meta.preprocessor.preprocessors import FeatureEngineer
  from finrl.meta.preprocessor.yahoodownloader import YahooDownloader
label_desc: Use image node_id 8 for calling a global function with example usage: test_check_and_make_directories(DIRS) without return types