class_docstr: fastNLP中各种Embedding的基类
class_docstr_tok: ["fastNLP\u4e2d\u5404\u79cdEmbedding\u7684\u57fa\u7c7b"]
docstr: 返回embedding的词典。
  
  :return: Vocabulary
docstr_tok: ["\u8fd4\u56deembedding\u7684\u8bcd\u5178\u3002",":","return",":","Vocabulary"]
code: def get_word_vocab(self):
      r"""
      返回embedding的词典。
  
      :return: Vocabulary
      """
      return self._word_vocab
  
imports: from abc import abstractmethod
  from typing import Union, Tuple
  from ...envs.imports import _NEED_IMPORT_TORCH
  import numpy
  from .utils import get_embeddings
label_desc: Use image node_id 10 for calling the TokenEmbedding obj's underlying member method code with example usage: obj.get_word_vocab() and returns: self