code: def download_file(
      download_url,
      download_path,
      split_name,
      filename,
      resume_byte_pos=None,
  ):
      """
      Download file from given URL
  
      Arguments
      ---------
      download_url : str
          URL of file being downloaded
      download_path : str
          Full path of the file that is to be downloaded
          (or already downloaded)
      split_name : str
          Split name of the file being downloaded
          e.g. read_speech
      filename : str
          Fielname of the file being downloaded
      resume_byte_pos: (int, optional)
          Starting byte position for resuming the download.
          Default is None, which means a fresh download.
  
      Returns
      -------
      bool
          If True, the file need not be downloaded again.
          Else the download might have failed or is incomplete.
      """
      print("Downloading:", split_name, "=>", filename)
      resume_header = (
          {"Range": f"bytes={resume_byte_pos}-"}
          if resume_byte_pos
          else None
      )
      response = requests.get(
          download_url, headers=resume_header, stream=True
      )
      file_size = int(response.headers.get("Content-Length"))
  
      mode = "ab" if resume_byte_pos else "wb"
      initial_pos = resume_byte_pos if resume_byte_pos else 0
  
      with open(download_path, mode) as f:
          with tqdm(
              total=file_size,
              unit="B",
              unit_scale=True,
              unit_divisor=1024,
              initial=initial_pos,
              miniters=1,
          ) as pbar:
              for chunk in response.iter_content(32 * 1024):
                  f.write(chunk)
                  pbar.update(len(chunk))
  
      # Validate downloaded file
      if validate_file(download_url, download_path):
          return True
      else:
          print("Download failed. Moving on.")
          return False
  
file_path: speechbrain/recipes/DNS/dns_download.py
imports: import os
  import ssl
  import shutil
  import zipfile
  import tarfile
  import certifi
  import argparse
  import fileinput
  import requests
  import urllib.request
  from tqdm.auto import tqdm
  from concurrent.futures import ThreadPoolExecutor
label_desc: Use image node_id 3 for calling a global function with example usage: download_file(download_url, download_path, split_name, filename, resume_byte_pos) and returns: True, False