code: def sync_workers():
      """
      Yields distributed rank and synchronizes all workers on exit.
      """
      rank = get_rank()
      yield rank
      barrier()
  
file_path: zoo/src/utils/distributed.py
imports: import os
  from contextlib import contextmanager
  import torch
label_desc: Use image node_id 6 for calling a global function with example usage: sync_workers() without return types