code: def sync_params(params):
      """
      Synchronize a sequence of Tensors across ranks from rank 0.
      """
      for p in params:
          with th.no_grad():
              dist.broadcast(p, 0)
  
file_path: consistency_models/cm/dist_util.py
imports: import io
  import os
  import socket
  import blobfile
  from mpi4py import MPI
  import torch
  import torch.distributed
label_desc: Use image node_id 4 for calling a global function with example usage: sync_params(params) without return types