code: def _touchTempFiles(self, filenames):
      for filename in filenames:
          open(path.join(self.tmp_dir, filename), "a").close()
  
imports: from os import path
  import shutil
  import tempfile
  from absl.testing import parameterized
  from tensorflow.python.data.kernel_tests import test_base
  from tensorflow.python.data.ops import dataset_ops
  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 3 for calling the ListFilesTest obj's underlying member method code with example usage: obj._touchTempFiles(filenames) without return types