class_docstr: Thrown when a download attempt fails
  
  Arguments
  ---------
  output: str
      the command output
  err: str
      stderr contents
class_docstr_tok: ["Thrown","when","a","download","attempt","fails","Arguments","--","--","--","--","-","output",":","str","the","command","output","err",":","str","stderr","contents"]
code: def __init__(self, output, err):
      msg = self.FORMAT_MSG.format(output=output, err=err)
      super().__init__(msg)
  
imports: import logging
  import csv
  import math
  import json
  import os
  import torchaudio
  import speechbrain
  from glob import glob
  from functools import partial
  from tqdm.auto import tqdm
  from torchaudio import functional
  from subprocess import list2cmdline
  from speechbrain.utils.superpowers import run_shell
  from speechbrain.utils.data_utils import download_file
  from speechbrain.dataio.dataio import load_pkl, save_pkl
label_desc: Use image node_id 1 to create a new DownloadError object from inherited base classes: Exception with example: obj = DownloadError(output, err)