code: def set_nccl_ib_envs():
      os.environ["NCCL_NET"] = "IB"
  
imports: from typing import Tuple, Optional
  import warnings
  import os
  import torch
  from apex.transformer.log_util import get_transformer_logger
  from apex.transformer._ucc_util import HAS_UCC
label_desc: Use image node_id 3 for calling a global function with example usage: set_nccl_ib_envs() without return types