class_docstr: Tokenizing strategy for instruction-based prompts.
class_docstr_tok: ["Tokenizing","strategy","for","instruction-based","prompts","."]
code: def parse_instruction_fields(
      self, prompt
  ) -> Union[Tuple[str, str, str], Tuple[str, str, str, str]]:
      raise NotImplementedError
  
imports: import abc
  import copy
  import logging
  from typing import Dict, List, Tuple, Union
  from fastchat.conversation import Conversation
  from transformers import BatchEncoding, PreTrainedTokenizer
  from axolotl.monkeypatch.fastchat_conversation_turns import add_get_turns_to_conversation
  from axolotl.prompters import IGNORE_TOKEN_ID
label_desc: Use image node_id 1 for calling the InstructionPromptTokenizingStrategy obj's underlying member method code with example usage: obj.parse_instruction_fields(prompt) without return types