code: def testParallelReadersAndParsers(
      self,
      batch_size,
      num_epochs,
      reader_num_threads,
      parser_num_threads,
  ):
      self.outputs = self.getNext(
          self.make_batch_feature(
              filenames=self._filenames,
              label_key="label",
              num_epochs=num_epochs,
              batch_size=batch_size,
              reader_num_threads=reader_num_threads,
              parser_num_threads=parser_num_threads,
          )
      )
      self._verify_records(
          batch_size,
          num_epochs=num_epochs,
          label_key_provided=True,
          interleave_cycle_length=reader_num_threads,
      )
      with self.assertRaises(errors.OutOfRangeError):
          self._next_actual_batch(label_key_provided=True)
  
      self.outputs = self.getNext(
          self.make_batch_feature(
              filenames=self._filenames,
              num_epochs=num_epochs,
              batch_size=batch_size,
              reader_num_threads=reader_num_threads,
              parser_num_threads=parser_num_threads,
          )
      )
      self._verify_records(
          batch_size,
          num_epochs=num_epochs,
          interleave_cycle_length=reader_num_threads,
      )
      with self.assertRaises(errors.OutOfRangeError):
          self._next_actual_batch()
  
imports: from absl.testing import parameterized
  import numpy
  from tensorflow.python.data.experimental.ops import readers
  from tensorflow.python.data.kernel_tests import test_base
  from tensorflow.python.data.kernel_tests import tf_record_test_base
  from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.data.ops import readers
  from tensorflow.python.data.util import nest
  from tensorflow.python.framework import combinations
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import tensor
  from tensorflow.python.ops import io_ops
  from tensorflow.python.ops import parsing_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 5 for calling the MakeBatchedFeaturesDatasetTest obj's underlying member method code with example usage: obj.testParallelReadersAndParsers(batch_size, num_epochs, reader_num_threads, parser_num_threads) without return types