code: def testGenerateFinalVocab(self):
      final_vocab = learner.generate_final_vocabulary(
          self.reserved_tokens, self.char_tokens, self.curr_tokens
      )
      self.assertEqual(final_vocab, self.vocab_array)
  
imports: import collections
  import logging
  from absl.testing import absltest
  from absl.testing import parameterized
  import numpy
  from tensorflow.python.data.ops import dataset_ops
  from tensorflow.python.ops.ragged import ragged_string_ops
  from tensorflow_text.tools.wordpiece_vocab import wordpiece_tokenizer_learner_lib
label_desc: Use image node_id 2 for calling the GenerateFinalVocabularyTest obj's underlying member method code with example usage: obj.testGenerateFinalVocab() without return types