code: def instance() -> _BarManager:
      """Get or create a BarManager for this process."""
      global _manager
      if _manager is None:
          _manager = _BarManager()
          if env_bool("RAY_TQDM_PATCH_PRINT", True):
              import builtins
  
              builtins.print = safe_print
      return _manager
  
imports: import builtins
  import copy
  import json
  import logging
  import os
  import sys
  import threading
  import time
  import uuid
  from typing import Any, Dict, Iterable, Optional
  import colorama
  import ray
  from ray._private.ray_constants import env_bool
  from ray.util.debug import log_once
label_desc: Use image node_id 2 for calling a global function with example usage: instance() and returns: _manager