code: def get_vocab(self):
      return self.vocab
  
imports: from typing import Dict, List, Union
  import numpy
  from nemo.collections.common.tokenizers.tokenizer_spec import TokenizerSpec
  from nemo.utils import logging
label_desc: Use image node_id 2 for calling the DummyTokenizer obj's underlying member method code with example usage: obj.get_vocab() and returns: self