code: def init_oob(world_size: int):
      os.environ["WORLD_SIZE"] = str(world_size)
  
      global OOB
      OOB = _OOB(
          [mp.Pipe(False) for _ in range(world_size * world_size)]
      )
  
file_path: tinygrad/extra/dist/__init__.py
imports: from multiprocessing.connection import Connection
  from typing import Any, Callable, List, Optional, Tuple
  from tinygrad.helpers import DEBUG, getenv
  import multiprocessing
  import os
label_desc: Use image node_id 2 for calling a global function with example usage: init_oob(world_size) without return types