code: def is_pipeline_first_stage(ignore_virtual=False):
      """Return True if in the first pipeline model-parallel stage, False otherwise."""
      if not ignore_virtual:
          if (
              get_virtual_pipeline_model_parallel_world_size()
              is not None
              and get_virtual_pipeline_model_parallel_rank() != 0
          ):
              return False
      return get_pipeline_model_parallel_rank() == 0
  
imports: import os
  from typing import Optional
  import torch
  from .utils import GlobalMemoryBuffer
label_desc: Use image node_id 29 for calling a global function with example usage: is_pipeline_first_stage(ignore_virtual) and returns: unknown, False