code: def testVocabSize(self):
      vocab_table = _CreateTable(_ENGLISH_VOCAB, 100)  # OOV values
      self.evaluate(vocab_table.initializer)
      tokenizer = WordpieceTokenizer(vocab_table, unknown_token=None)
      self.assertEqual(self.evaluate(tokenizer.vocab_size()), 121)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl.testing import parameterized
  from tensorflow.python.compat import compat
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors_impl
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import lookup_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops.ragged import ragged_factory_ops
  from tensorflow.python.platform import test
  from tensorflow_text.python.ops.wordpiece_tokenizer import WordpieceTokenizer
label_desc: Use image node_id 8 for calling the WordpieceOpTest obj's underlying member method code with example usage: obj.testVocabSize() without return types