code: def test_sharded_read_with_multiprocess_loader(self):
      self.read_and_check_instances(
          self.identical_files_glob, num_workers=2
      )
  
file_path: allennlp/tests/data/dataset_readers/sharded_dataset_reader_test.py
imports: import glob
  import os
  import tarfile
  from collections import Counter
  from typing import Tuple
  from allennlp.common.testing import AllenNlpTestCase
  from allennlp.data.data_loaders import MultiProcessDataLoader
  from allennlp.data.dataset_readers import SequenceTaggingDatasetReader, ShardedDatasetReader
  from allennlp.data.instance import Instance
label_desc: Use image node_id 4 for calling the TestShardedDatasetReader obj's underlying member method code with example usage: obj.test_sharded_read_with_multiprocess_loader() without return types