code: def test_cached_assets_path_default_assets_dir(self) -> None:
      with patch(
          "huggingface_hub.utils._cache_assets.HF_ASSETS_CACHE",
          self.cache_dir,
      ):  # Uses environment variable from HF_ASSETS_CACHE
          self.assertEqual(
              cached_assets_path(library_name="datasets"),
              self.cache_dir / "datasets" / "default" / "default",
          )
  
file_path: hub-client/tests/test_utils_assets.py
imports: import unittest
  from pathlib import Path
  from unittest.mock import patch
  import pytest
  from huggingface_hub import cached_assets_path
label_desc: Use image node_id 6 for calling the CacheAssetsTest obj's underlying member method code with example usage: obj.test_cached_assets_path_default_assets_dir() without return types