code: def sample_speech(lang):
      if lang not in _FILES:
          raise NotImplementedError(f"Unexpected lang: {lang}")
      filename = _FILES[lang]
      path = torchaudio.utils.download_asset(f"test-assets/{filename}")
      return path
  
file_path: audio/test/integration_tests/conftest.py
imports: import os
  import shutil
  import pytest
  import torch
  import torchaudio
label_desc: Use image node_id 2 for calling a global function with example usage: sample_speech(lang) and returns: path