code: def _server_cookie_secret() -> str:
      """Symmetric key used to produce signed cookies. If deploying on multiple replicas, this should
      be set to the same value across all replicas to ensure they all share the same secret.
  
      Default: randomly generated secret key.
      """
      return secrets.token_hex()
  
imports: import copy
  import os
  import secrets
  import threading
  from collections import OrderedDict
  from typing import Any, Callable, Dict, Optional, cast
  import toml
  from blinker import Signal
  from streamlit import config_util, development, env_util, file_util, util
  from streamlit.config_option import ConfigOption
  from streamlit.errors import StreamlitAPIException
label_desc: Use image node_id 11 for calling a global function with example usage: _server_cookie_secret() and returns: secrets