code: def test_validate_label_locale_default(self):
      f = get_validate_label(Namespace(validate_label_locale=None))
      self.assertEqual(f("toto"), "toto")
      self.assertEqual(f("toto1234"), None)
      self.assertEqual(f("toto1234[{[{[]"), None)
  
file_path: DeepSpeech/tests/test_importers.py
imports: import unittest
  from argparse import Namespace
  from deepspeech_training.util.importers import validate_label_eng, get_validate_label
  from pathlib import Path
label_desc: Use image node_id 2 for calling the TestGetValidateLabel obj's underlying member method code with example usage: obj.test_validate_label_locale_default() without return types