docs: def clear(prompt=True, cache=None):
      """Clear loady's cache."""
      cache = cache or config.cache()
      if prompt:
          answer = input(
              'Clear library cache files in %s/? (yN) ' % cache)
          if not answer.startswith('y'):
              return False
      shutil.rmtree(cache, ignore_errors=True)
      return True