code: def tokenize(self, tokenizer):
      return TokenizedExample(
          guid=self.guid,
          prompt=tokenizer.tokenize(self.prompt),
          choice_list=[
              tokenizer.tokenize(choice) for choice in self.choice_list
          ],
          label_id=self.task.CHOICE_TO_ID[self.label],
      )
  
imports: import numpy
  from dataclasses import dataclass
  from jiant.tasks.lib.templates.shared import labels_to_bimap, create_input_set_from_tokens_and_segments, add_cls_token
  from jiant.tasks.lib.templates import multiple_choice
  from jiant.tasks.utils import truncate_sequences
  from jiant.utils.python.io import read_jsonl
label_desc: Use image node_id 2 for calling the Example obj's underlying member method code with example usage: obj.tokenize(tokenizer) and returns: TokenizedExample