code: def __getitem__(self, index):
      ann = self.annotation[index]
      image_id = ann["sample_id"] + ".jpg"
      image_path = os.path.join(self.vis_root, image_id)
      try:
          image = Image.open(image_path).convert("RGB")
      except:
          return None
      image = self.vis_processor(image)
      question = self.text_processor(ann["questions"])
  
      answers = [ann["answers"]]
      # TODO this should be configured better
      weights = [1.0]
  
      return {
          "image": image,
          "text_input": question,
          "answers": answers,
          "weights": weights,
          "question_id": ann["sample_id"],
      }
  
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 2 for calling the OCRVQADataset obj's underlying member method code with example usage: obj.__getitem__(index) and returns: dict, None