code: def _outputFilename(self):
      return os.path.join(self.get_temp_dir(), "tf_record.out.txt")
  
imports: import os
  from absl.testing import parameterized
  from tensorflow.python.data.experimental.ops import grouping
  from tensorflow.python.data.experimental.ops import writers
  from tensorflow.python.data.kernel_tests import test_base
  from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.data.ops import readers
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import combinations
  from tensorflow.python.framework import dtypes
  from tensorflow.python.lib.io import python_io
  from tensorflow.python.lib.io import tf_record
  from tensorflow.python.ops import string_ops
  from tensorflow.python.platform import test
  from tensorflow.python.util import compat
label_desc: Use image node_id 6 for calling the TFRecordWriterTest obj's underlying member method code with example usage: obj._outputFilename() and returns: os