code: def download_transcripts(target_folder):
      """
      Download and unpack Switchboard transcripts from OpenSLR.
  
      Parameters
      ----------
      target_folder : str
          Desired location to store the transcripts.
      """
      transcription_dir = os.path.join(
          target_folder, "swb_ms98_transcriptions"
      )
  
      if not os.path.exists(transcription_dir):
          logger.info(
              f"Download transcriptions and store them in {target_folder}"
          )
  
          download_source = "http://www.openslr.org/resources/5/switchboard_word_alignments.tar.gz"
          download_target = os.path.join(
              target_folder, "switchboard_word_alignments.tar.gz"
          )
          download_file(download_source, download_target, unpack=True)
      else:
          logger.info(
              f"Skipping download of transcriptions because {target_folder} already exists."
          )
  
imports: import re
  import csv
  import logging
  import os
  from collections import defaultdict
  from speechbrain.dataio.dataio import merge_csvs
  from speechbrain.utils.data_utils import download_file, get_all_files
label_desc: Use image node_id 5 for calling a global function with example usage: download_transcripts(target_folder) without return types