code: def test_full_tokenizer(self):
      tokenizer = PhobertTokenizer(
          self.vocab_file, self.merges_file, **self.special_tokens_map
      )
      text = "Tôi là VinAI Research"
      bpe_tokens = "T@@ ô@@ i l@@ à V@@ i@@ n@@ A@@ I R@@ e@@ s@@ e@@ a@@ r@@ c@@ h".split()
      tokens = tokenizer.tokenize(text)
      print(tokens)
      self.assertListEqual(tokens, bpe_tokens)
  
      input_tokens = tokens + [tokenizer.unk_token]
  
      input_bpe_tokens = [
          4,
          3,
          5,
          3,
          3,
          3,
          3,
          3,
          3,
          6,
          7,
          9,
          3,
          9,
          3,
          3,
          3,
          3,
          3,
      ]
      self.assertListEqual(
          tokenizer.convert_tokens_to_ids(input_tokens),
          input_bpe_tokens,
      )
  
file_path: transformers/tests/models/phobert/test_tokenization_phobert.py
imports: import os
  import unittest
  from transformers.models.phobert.tokenization_phobert import VOCAB_FILES_NAMES, PhobertTokenizer
  from ...test_tokenization_common import TokenizerTesterMixin
label_desc: Use image node_id 4 for calling the PhobertTokenizationTest obj's underlying member method code with example usage: obj.test_full_tokenizer() without return types