code: def get_rank():
      """
      Returns the rank of the current worker.
  
      Returns 0 if not in distributed.
      """
      if not is_distributed():
          return 0
      else:
          return dist.get_rank()
  
file_path: ParlAI/parlai/utils/distributed.py
imports: import builtins
  import copy
  import os
  import pickle
  import contextlib
  import subprocess
  import socket
  import parlai.utils.logging
label_desc: Use image node_id 4 for calling a global function with example usage: get_rank() and returns: int, dist