code: def convert_tokens_to_ids(self, tokens: List) -> List:
      return convert_by_vocab(self.vocab, tokens)
  
imports: import collections
  import io
  import pickle
  import unicodedata
  from typing import List, Union
label_desc: Use image node_id 4 for calling the WSSPTokenizer obj's underlying member method code with example usage: obj.convert_tokens_to_ids(tokens) and returns: convert_by_vocab