code: def __getitem__(self, index):
      image_path = os.path.join(
          self.vis_root, self.annotation[index]["image"]
      )
      image = Image.open(image_path).convert("RGB")
  
      image = self.vis_processor(image)
  
      return {"image": image, "index": index}
  
imports: import os
  from collections import OrderedDict
  from lavis.datasets.datasets.base_dataset import BaseDataset
  from PIL import Image
label_desc: Use image node_id 2 for calling the RetrievalEvalDataset obj's underlying member method code with example usage: obj.__getitem__(index) and returns: dict