code: def _BroadcastComputedParams(
      devices, model, rendezvous, use_nccl=False
  ):
      if rendezvous is None:
          _BroadcastComputedParamsSingleHost(devices, model, use_nccl)
      else:
          _BroadcastComputedParamsDistributed(
              devices, model, rendezvous, use_nccl
          )
  
imports: from collections import OrderedDict
  import logging
  import copy
  from multiprocessing import cpu_count
  from caffe2.python import model_helper, dyndep, scope, workspace, core, memonger, utils
  from caffe2.proto import caffe2_pb2
  import numpy
  import warnings
label_desc: Use image node_id 34 for calling a global function with example usage: _BroadcastComputedParams(devices, model, rendezvous, use_nccl) without return types