class_docstr: Tests VocabInfo class
class_docstr_tok: ["Tests","VocabInfo","class"]
code: def tearDown(self):
      super(VocabInfoTest, self).tearDown()
      self.vocab_file.close()
  
file_path: seq2seq/seq2seq/test/vocab_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  import tensorflow
  import numpy
  from seq2seq.data import vocab
  from seq2seq.test import utils
label_desc: Use image node_id 2 for calling the VocabInfoTest obj's underlying member method code with example usage: obj.tearDown() without return types