code: def print_announcements(opt):
      """
      Output any announcements the ParlAI team wishes to make to users.
  
      Also gives the user the option to suppress the output.
      """
      # no annoucements to make right now
      return
  
      noannounce_file = os.path.join(
          opt.get("datapath"), "noannouncements"
      )
      if PathManager.exists(noannounce_file):
          # user has suppressed announcements, don't do anything
          return
  
      # useful constants
      # all of these colors are bolded
      RESET = "\033[0m"
      BOLD = "\033[1m"
      RED = "\033[1;91m"
      YELLOW = "\033[1;93m"
      GREEN = "\033[1;92m"
      BLUE = "\033[1;96m"
      CYAN = "\033[1;94m"
      MAGENTA = "\033[1;95m"
  
      # only use colors if we're outputting to a terminal
      USE_COLORS = _sys.stdout.isatty()
      if not USE_COLORS:
          RESET = (
              BOLD
          ) = RED = YELLOW = GREEN = BLUE = CYAN = MAGENTA = ""
  
      # generate the rainbow stars
      rainbow = [RED, YELLOW, GREEN, CYAN, BLUE, MAGENTA]
      size = 78 // len(rainbow)
      stars = "".join([color + "*" * size for color in rainbow])
      stars += RESET
  
      # do the actual output
      print(
          "\n".join(
              [
                  "",
                  stars,
                  BOLD,
                  "Announcements go here.",
                  RESET,
                  # don't bold the suppression command
                  "To suppress this message (and future announcements), run\n`touch {}`".format(
                      noannounce_file
                  ),
                  stars,
              ]
          )
      )
  
imports: import argparse
  import importlib
  import os
  import sys
  import datetime
  import parlai
  import parlai.utils.logging
  from parlai.core.build_data import modelzoo_path
  from parlai.core.loader import load_teacher_module, load_agent_module, load_world_module
  from parlai.tasks.tasks import ids_to_tasks
  from parlai.core.opt import Opt
  from parlai.utils.io import PathManager
  from typing import List, Optional
label_desc: Use image node_id 2 for calling a global function with example usage: print_announcements(opt) without return types