code: def get_default_path_watcher_class() -> PathWatcherType:
      """Return the class to use for path changes notifications, based on the
      server.fileWatcherType config option.
      """
      return get_path_watcher_class(
          config.get_option("server.fileWatcherType")
      )
  
file_path: streamlit/lib/streamlit/watcher/path_watcher.py
imports: from typing import Callable, Optional, Type, Union
  import click
  import streamlit.watcher
  from streamlit import config, env_util
  from streamlit.logger import get_logger
  from streamlit.watcher.polling_path_watcher import PollingPathWatcher
label_desc: Use image node_id 5 for calling a global function with example usage: get_default_path_watcher_class() and returns: get_path_watcher_class