class_docstr: Implementation of T-Few (https://arxiv.org/pdf/2205.05638.pdf).
  Refer to https://github.com/r-three/t-few
class_docstr_tok: ["Implementation","of","T-Few","(","https",":","\/\/arxiv.org\/pdf\/2205.05638.pdf",")",".","Refer","to","https",":","\/\/github.com\/r-three\/t-few"]
code: def choices_key(self):
      return f"{self.prefix}_{CHOICES_IDS}"
  
imports: import collections
  import logging
  import os
  import random
  from functools import lru_cache
  from typing import Dict, List, Optional, Tuple
  import torch
  import torch.nn.functional
  from torch import nn
  from transformers import AutoConfig, AutoModelForSeq2SeqLM
  from transformers import logging
  from ..constants import AUTOMM, CHOICES_IDS, COLUMN, COLUMN_FEATURES, FEATURES, LABEL, LM_TARGET, LOGITS, MASKS, TEMPLATE_LOGITS, TEXT_SEGMENT_IDS, TEXT_TOKEN_IDS, TEXT_VALID_LENGTH
  from .utils import DummyLayer, assign_layer_ids, get_column_features, get_pretrained_tokenizer
label_desc: Use image node_id 7 for calling the TFewModel obj's underlying member method code with example usage: obj.choices_key() and returns: self, str, CHOICES_IDS