code: def get_virtual_pipeline_model_parallel_rank():
      """Return the virtual pipeline-parallel rank."""
      global _VIRTUAL_PIPELINE_MODEL_PARALLEL_RANK
      return _VIRTUAL_PIPELINE_MODEL_PARALLEL_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 39 for calling a global function with example usage: get_virtual_pipeline_model_parallel_rank() and returns: _VIRTUAL_PIPELINE_MODEL_PARALLEL_RANK