code: def _make_valid_extensions() -> tuple:
      return AUDIO_EXTENSIONS + IMG_EXTENSIONS + NP_EXTENSIONS
  
file_path: lightning-flash/tests/core/data/utilities/test_paths.py
imports: import os
  import warnings
  from string import ascii_lowercase
  from typing import List
  import pytest
  from flash.core.data.utilities.loading import AUDIO_EXTENSIONS, IMG_EXTENSIONS, NP_EXTENSIONS
  from flash.core.data.utilities.paths import PATH_TYPE, filter_valid_files
  from numpy import random
label_desc: Use image node_id 4 for calling a global function with example usage: _make_valid_extensions() and returns: unknown