code: def print_rank_0(*args, **kwargs) -> None:
      if not dist.is_initialized() or dist.get_rank() == 0:
          print(*args, **kwargs)
  
imports: from time import time
  from typing import Optional
  import torch
  import torch.distributed
  from coati.experience_maker import Experience
  from .base import Callback
label_desc: Use image node_id 2 for calling a global function with example usage: print_rank_0() without return types