code: def test_datetime_1(self):
      text = "29-10-2004 Ngày 2/2014 6/2 6/2/2014 6-2 6-2-99 6.2 7.3.2014 2010-2015 2004/09/15 08:41:40"
      actual = tokenize(text, format="text")
      expected = "29-10-2004 Ngày 2/2014 6/2 6/2/2014 6-2 6-2-99 6.2 7.3.2014 2010 - 2015 2004/09/15 08:41:40"
      self.assertEqual(expected, actual)
  
imports: from unittest import TestCase
  from underthesea.pipeline.word_tokenize.regex_tokenize import tokenize
label_desc: Use image node_id 17 for calling the TestTokenize obj's underlying member method code with example usage: obj.test_datetime_1() without return types