code: def test_ids_to_text(self, test_data_dir):
      tokenizer = SentencePieceTokenizer(
          test_data_dir + self.model_name, legacy=True
      )
      special_tokens = MODEL_SPECIAL_TOKENS
      tokenizer.add_special_tokens(special_tokens)
  
      text = "[CLS] a b c [MASK] e f [SEP] g h i [SEP]"
      ids = tokenizer.text_to_ids(text)
      result = tokenizer.ids_to_text(ids)
  
      assert text == result
  
imports: import pytest
  from nemo.collections.common.tokenizers.sentencepiece_tokenizer import SentencePieceTokenizer
  from nemo.collections.common.tokenizers.youtokentome_tokenizer import YouTokenToMeTokenizer
label_desc: Use image node_id 5 for calling the TestSentencePieceTokenizerLegacy obj's underlying member method code with example usage: obj.test_ids_to_text(test_data_dir) without return types