code: def get_process_group_size(process_group: DistProcessGroup) -> int:
      """
      Returns:
          The size of the per-machine process group,
          i.e. the number of processes per machine.
      """
      if not dist.is_available():
          return 1
      if not dist.is_initialized():
          return 1
      return dist.get_world_size(group=process_group)
  
imports: import functools
  import logging
  import pickle
  from typing import Any, List, Optional, Tuple, TypeVar
  import torch
  import torch.distributed
label_desc: Use image node_id 12 for calling a global function with example usage: get_process_group_size(process_group) and returns: dist, int, int