code: def download_asset_external(url, key):
      path = Path(torch.hub.get_dir()) / "torchaudio" / Path(key)
      if not path.exists():
          path.parent.mkdir(parents=True, exist_ok=True)
          torch.hub.download_url_to_file(url, path)
      return str(path)
  
file_path: audio/examples/tutorials/asr_inference_with_cuda_ctc_decoder_tutorial.py
imports: import torch
  import torchaudio
  import time
  from pathlib import Path
  import IPython
  import sentencepiece
  from torchaudio.models.decoder import cuda_ctc_decoder
  from torchaudio.utils import download_asset
label_desc: Use image node_id 1 for calling a global function with example usage: download_asset_external(url, key) and returns: str