class_docstr: TextIOLayerHelper
code: def func(self):
      f, filename = tempfile.mkstemp()
      os.close(f)
      self._filename = filename
      return tfio.experimental.IOLayer.text(filename)
  
file_path: io/tests/test_io_layer.py
imports: import os
  import sys
  import time
  import tempfile
  import pytest
  import numpy
  import tensorflow
  import tensorflow_io
label_desc: Use image node_id 1 for calling the TextIOLayerHelper obj's underlying member method code with example usage: obj.func() and returns: tfio