class_docstr: Abstract BPE Helper.
  
  BPE Helper subclasses must implement appropriate abstractmethods.
class_docstr_tok: ["Abstract","BPE","Helper",".","BPE","Helper","subclasses","must","implement","appropriate","abstractmethods","."]
docstr: Sync BPE Helper dictionary with dict_agent dict.
  
  :param dict_agent:
      agent with which we are syncing the dictionary
docstr_tok: ["Sync","BPE","Helper","dictionary","with","dict_agent","dict",".",":","param","dict_agent",":","agent","with","which","we","are","syncing","the","dictionary"]
code: def sync_with_dict(self, dict_agent):
      """
      Sync BPE Helper dictionary with dict_agent dict.
  
      :param dict_agent:
          agent with which we are syncing the dictionary
      """
  
imports: from parlai.core.params import ParlaiParser
  from abc import ABC, abstractmethod
  from functools import lru_cache
  import json
  import os
  import random
  import re
  from typing import Dict, List, Optional, Set, Tuple
  from typing_extensions import final
  from parlai.core.build_data import download, make_dir
  from parlai.core.opt import Opt
  from parlai.utils.misc import warn_once
  from parlai.utils.typing import TShared
  from parlai.utils.io import PathManager
  import parlai.utils.logging
label_desc: Use image node_id 8 for calling the BPEHelper obj's underlying member method code with example usage: obj.sync_with_dict(dict_agent) without return types