code: def _push_pull_function_factory(tensor):
      return "byteps_torch_push_pull_async_" + tensor.type().replace(
          ".", "_"
      )
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from distutils.version import LooseVersion
  import torch
  from byteps.torch import c_lib
  from byteps.common import BytePSBasics
  from byteps.torch.compression import Compression
label_desc: Use image node_id 2 for calling a global function with example usage: _push_pull_function_factory(tensor) and returns: unknown