code: def testName(self):
      files = self._createFiles(1, 5)
      expected_output = [self._lineText(0, i) for i in range(5)]
      ds = readers.TextLineDataset(files, name="text_line_dataset")
      self.assertDatasetProduces(
          ds, expected_output=expected_output, assert_items_equal=True
      )
  
imports: import gzip
  import os
  import pathlib
  import zlib
  from absl.testing import parameterized
  from tensorflow.python.data.kernel_tests import checkpoint_test_base
  from tensorflow.python.data.kernel_tests import test_base
  from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.data.ops import options
  from tensorflow.python.data.ops import readers
  from tensorflow.python.framework import combinations
  from tensorflow.python.framework import errors
  from tensorflow.python.platform import test
  from tensorflow.python.util import compat
label_desc: Use image node_id 6 for calling the TextLineDatasetTest obj's underlying member method code with example usage: obj.testName() without return types