code: def get_world_size():
      if is_xla():
          return xm.xrt_world_size()
      if not dist.is_available():
          return 1
      if not dist.is_nccl_available():
          return 1
      if not dist.is_initialized():
          return 1
      return dist.get_world_size()
  
imports: import contextlib
  import logging
  import os
  import pickle
  import socket
  import subprocess
  import warnings
  from itertools import chain
  import torch
  from mmf.common.registry import registry
  from torch import distributed
label_desc: Use image node_id 7 for calling a global function with example usage: get_world_size() and returns: dist, xm, int, int, int