code: def _get_surface_string(self, raw_token: str) -> str:
      token_surface_string = raw_token
      if raw_token[:2] == "##":
          token_surface_string = raw_token[2:]
      return token_surface_string
  
file_path: scattertext/scattertext/tokenizers/transformers.py
imports: import abc
  from abc import ABC
  from scattertext.WhitespaceNLP import Tok, _get_pos_tag, Doc
label_desc: Use image node_id 1 for calling the BERTTokenizerWrapper obj's underlying member method code with example usage: obj._get_surface_string(raw_token) and returns: token_surface_string