class_docstr: Base Vocabulary class.
  
  This class only needs a vocabulary dictionary without specifying the characters.
  
  Args:
      vocab (Dict): A dictionary of characters and their corresponding indices.
docstr: Return the vocabulary dictionary.
docstr_tok: ["Return","the","vocabulary","dictionary","."]
code: def vocab(self):
      """Return the vocabulary dictionary."""
      return self._vocab
  
imports: from dataclasses import replace
  from typing import Dict
  from TTS.tts.configs.shared_configs import CharactersConfig
label_desc: Use image node_id 6 for calling the BaseVocabulary obj's underlying member method code with example usage: obj.vocab() and returns: self