code: def set_virtual_pipeline_model_parallel_rank(rank):
      """Set the virtual pipeline-parallel rank."""
      global _VIRTUAL_PIPELINE_MODEL_PARALLEL_RANK
      _VIRTUAL_PIPELINE_MODEL_PARALLEL_RANK = rank
  
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 40 for calling a global function with example usage: set_virtual_pipeline_model_parallel_rank(rank) without return types