code: def help():
      """Print this help message."""
      # We use _get_command_line_as_string to run some error checks but don't do
      # anything with its return value.
      _get_command_line_as_string()
  
      assert (
          len(sys.argv) == 2
      )  # This is always true, but let's assert anyway.
  
      # Pretend user typed 'streamlit --help' instead of 'streamlit help'.
      sys.argv[1] = "--help"
      main(prog_name="streamlit")
  
imports: import os
  import sys
  from typing import Any, Dict, List, Optional
  import click
  import streamlit.runtime.caching
  import streamlit.runtime.legacy_caching
  import streamlit.web.bootstrap
  from streamlit import config
  from streamlit.config_option import ConfigOption
  from streamlit.runtime.credentials import Credentials, check_credentials
  from streamlit.web.cache_storage_manager_config import create_default_cache_storage_manager
label_desc: Use image node_id 6 for calling a global function with example usage: help() without return types