docstr: Test `huggingface-cli scan-cache`.
docstr_tok: ["Test","`","huggingface-cli","scan-cache","`","."]
code: def test_scan_cache_basic(self) -> None:
      """Test `huggingface-cli scan-cache`."""
      args = self.parser.parse_args(["scan-cache"])
      self.assertEqual(args.dir, None)
      self.assertEqual(args.verbose, 0)
      self.assertEqual(args.func, ScanCacheCommand)
  
imports: import os
  import unittest
  import warnings
  from argparse import ArgumentParser, Namespace
  from contextlib import contextmanager
  from pathlib import Path
  from typing import Generator
  from unittest.mock import Mock, patch
  from huggingface_hub.commands.delete_cache import DeleteCacheCommand
  from huggingface_hub.commands.download import DownloadCommand
  from huggingface_hub.commands.scan_cache import ScanCacheCommand
  from huggingface_hub.commands.upload import UploadCommand
  from huggingface_hub.utils import RevisionNotFoundError, SoftTemporaryDirectory, capture_output
  from .testing_utils import DUMMY_MODEL_ID
label_desc: Use image node_id 2 for calling the TestCacheCommand obj's underlying member method code with example usage: obj.test_scan_cache_basic() without return types