code: def close(self):
      for wm in self._watched_modules.values():
          wm.watcher.close()
      self._watched_modules = {}
      self._watched_pages = set()
      self._is_closed = True
  
imports: import collections
  import os
  import sys
  import types
  from typing import Callable, Dict, List, Optional, Set
  from streamlit import config, file_util
  from streamlit.folder_black_list import FolderBlackList
  from streamlit.logger import get_logger
  from streamlit.source_util import get_pages
  from streamlit.watcher.path_watcher import NoOpPathWatcher, get_default_path_watcher_class
label_desc: Use image node_id 5 for calling the LocalSourcesWatcher obj's underlying member method code with example usage: obj.close() without return types