code: def get_list_nab() -> list:
      """
      Get list of possible time series to retrieve from the Numenta Anomaly Benchmark: https://github.com/numenta/NAB.
  
      Returns
      -------
      List with time series names.
      """
      url_labels = "https://raw.githubusercontent.com/numenta/NAB/master/labels/combined_labels.json"
      try:
          resp = requests.get(url_labels, timeout=TIMEOUT)
          resp.raise_for_status()
      except RequestException:
          logger.exception(
              "Could not connect, URL may be out of service"
          )
          raise
      labels_json = resp.json()
      files = [k[:-4] for k, v in labels_json.items()]
      return files
  
imports: import io
  import logging
  from io import BytesIO
  from typing import List, Tuple, Type, Union
  from xml.etree import ElementTree
  import dill
  import numpy
  import pandas
  import requests
  from alibi_detect.utils.data import Bunch
  from alibi_detect.utils.url import _join_url
  from requests import RequestException
  from urllib.error import URLError
  from scipy.io import arff
  from sklearn.datasets import fetch_kddcup99
label_desc: Use image node_id 9 for calling a global function with example usage: get_list_nab() and returns: files