code: def try_to_guess_ref_keys(
      self, column_names: List[str]
  ) -> Optional[List[str]]:
      raise NotImplementedError(
          "This method must be implemented in subclasses."
      )
  
imports: import copy
  import functools
  import itertools
  from abc import ABC, abstractmethod
  from typing import TYPE_CHECKING, Any, Callable, Dict, List, Optional, Set, Tuple, Type, Union
  from datasets import Dataset, DatasetDict
  from datasets import load_dataset
  from transformers import PreTrainedTokenizerBase
  from transformers.image_processing_utils import BaseImageProcessor
  from ..None import logging
label_desc: Use image node_id 7 for calling the TaskProcessor obj's underlying member method code with example usage: obj.try_to_guess_ref_keys(column_names) without return types