src/transformers/models/bert_japanese/tokenization_bert_japanese.py/BertJapaneseTokenizer/get_vocab
class BertJapaneseTokenizer:    def get_vocab(self):
        if self.subword_tokenizer_type == "sentencepiece":
            vocab = {self.convert_ids_to_tokens(i): i for i in range(self.vocab_size)}
            vocab.update(self.added_tokens_encoder)
            return vocab
        return dict(self.vocab, **self.added_tokens_encoder)