code: def test_non_support_lang(self):
      try:
          nac.KeyboardAug(lang="non_exist")
          self.assertTrue(False)
      except ValueError:
          self.assertTrue(True)
  
imports: import unittest
  import re
  import json
  import os
  import nlpaug.augmenter.char
label_desc: Use image node_id 14 for calling the TestKeyboard obj's underlying member method code with example usage: obj.test_non_support_lang() without return types