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: Used to toggle BPE dropout on (True) or off (False).
docstr_tok: ["Used","to","toggle","BPE","dropout","on","(","True",")","or","off","(","False",")","."]
code: def enable_bpe_dropout(self, enabled: bool):
      """
      Used to toggle BPE dropout on (True) or off (False).
      """
      self._bpe_dropout_enabled = enabled
  
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 3 for calling the BPEHelper obj's underlying member method code with example usage: obj.enable_bpe_dropout(enabled) without return types