code: def test_bert_example(self, doc_pipeline_bert_tokenizer):
      try:
          bert_tokenizer = Tokenizer.from_file("data/bert-wiki.json")
      except Exception:
          bert_tokenizer = Tokenizer.from_file(
              doc_pipeline_bert_tokenizer
          )
  
      # START bert_test_decoding
      output = bert_tokenizer.encode(
          "Welcome to the 🤗 Tokenizers library."
      )
      print(output.tokens)
      # ["[CLS]", "welcome", "to", "the", "[UNK]", "tok", "##eni", "##zer", "##s", "library", ".", "[SEP]"]
  
      bert_tokenizer.decode(output.ids)
      # "welcome to the tok ##eni ##zer ##s library ."
      # END bert_test_decoding
      assert (
          bert_tokenizer.decode(output.ids)
          == "welcome to the tok ##eni ##zer ##s library ."
      )
      # START bert_proper_decoding
      from tokenizers import decoders
  
      bert_tokenizer.decoder = decoders.WordPiece()
      bert_tokenizer.decode(output.ids)
      # "welcome to the tokenizers library."
      # END bert_proper_decoding
      assert (
          bert_tokenizer.decode(output.ids)
          == "welcome to the tokenizers library."
      )
  
imports: from tokenizers import Tokenizer
  from ..utils import data_dir, doc_pipeline_bert_tokenizer, doc_wiki_tokenizer
label_desc: Use image node_id 3 for calling the TestPipeline obj's underlying member method code with example usage: obj.test_bert_example(doc_pipeline_bert_tokenizer) without return types