code: def test_decode(self):
      self.assertEqual(
          "Dude - that's so cool.",
          tokenizer.decode(
              ["Dude", " - ", "that", "'", "s", "so", "cool", "."]
          ),
      )
  
imports: import os
  import random
  import six
  from six.moves import range
  import tensorflow.compat.v1
  from trax.data import tokenizer
label_desc: Use image node_id 2 for calling the TokenizerTest obj's underlying member method code with example usage: obj.test_decode() without return types