code: def _process_doc(self, doc):
      out_doc = {
          "id": doc["id"],
          "query": doc["question_stem"],
          "choices": doc["choices"]["text"],
          "gold": ["A", "B", "C", "D"].index(doc["answerKey"].strip()),
      }
      return out_doc
  
file_path: lm-evaluation-harness/lm_eval/tasks/openbookqa.py
imports: from lm_eval.base import MultipleChoiceTask
label_desc: Use image node_id 7 for calling the OpenBookQA obj's underlying member method code with example usage: obj._process_doc(doc) and returns: out_doc