code: def test_get_blank(self):
      # File with blank (empty) line.
      ds = self._dataset(["ascii_blank_line.txt"], encoding="ascii")
      assert ds[0] == "hello\n"
      assert ds[1] == "world\n"
      assert ds[2] == "\n"
      assert ds[3] == "test\n"
  
imports: from __future__ import unicode_literals
  import os
  import pickle
  import unittest
  import six
  from chainer import datasets
  from chainer import testing
label_desc: Use image node_id 13 for calling the TestTextDataset obj's underlying member method code with example usage: obj.test_get_blank() without return types