code: def __getitem__(self, index):
      data = super().__getitem__(index)
      if data != None:
          data["text_output"] = random.choice(data["answers"])
      return data
  
file_path: lavis/lavis/datasets/datasets/ocr_datasets.py
imports: import os
  import random
  import copy
  from PIL import Image
  from lavis.datasets.datasets.vqa_datasets import VQADataset
label_desc: Use image node_id 1 for calling the OCRVQAInstructDataset obj's underlying member method code with example usage: obj.__getitem__(index) and returns: data