code: def test_version_check():
      comm = create_communicator(
          NaiveCommunicator, mpi_comm, use_gpu=False
      )
      if chainer.__version__.startswith("1."):
          with pytest.raises(RuntimeError):
              MultiNodeBatchNormalization(3, comm)
      else:
          # Expecting no exceptions
          MultiNodeBatchNormalization(3, comm)
  
imports: import chainer
  from chainer.backends.cuda import cupy
  import chainer.testing
  import chainer.utils
  import mpi4py.MPI
  import numpy
  import pytest
  from chainermn.communicators.naive_communicator import NaiveCommunicator
  from chainermn.communicators.pure_nccl_communicator import PureNcclCommunicator
  from chainermn.links import MultiNodeBatchNormalization
  from chainermn import nccl
label_desc: Use image node_id 5 for calling a global function with example usage: test_version_check() without return types