code: def put(self, batch, prefetch_state, reset_count):
      with self._lock:
          if len(self._batch_queue) == self.n_prefetch:
              self._not_full_cond.wait()
          if reset_count == self._reset_count:
              self._batch_queue.append((batch, prefetch_state))
              self._not_empty_cond.notify()
  
imports: from __future__ import division
  import datetime
  import multiprocessing
  from multiprocessing import sharedctypes
  import signal
  import sys
  import threading
  import warnings
  import numpy
  import six
  from chainer.dataset import iterator
  from chainer.iterators import _statemachine
  from chainer.iterators.order_samplers import ShuffleOrderSampler
label_desc: Use image node_id 7 for calling the _Communicator obj's underlying member method code with example usage: obj.put(batch, prefetch_state, reset_count) without return types