code: def get_config(self, name=None):
      if name == "allreduce_grad_dtype":
          return self.allreduce_grad_dtype
      else:
          return super(PureNcclCommunicator, self).get_config(name)
  
file_path: chainer/chainermn/communicators/pure_nccl_communicator.py
imports: import warnings
  import chainer.cuda
  from chainermn.communicators import _communication_utility
  from chainermn.communicators import _memory_utility
  from chainermn.communicators import mpi_communicator_base
  from chainermn import nccl
  import numpy
label_desc: Use image node_id 5 for calling the PureNcclCommunicator obj's underlying member method code with example usage: obj.get_config(name) and returns: self, super