code: def __getitem__(self, index):
      ann = self.annotation[index]
  
      vname = ann["video"]
      video_path = os.path.join(self.vis_root, vname)
  
      try:
          video = self.vis_processor(video_path)
      except:
          print(f"Could not load {video_path}")
          return None
  
      return {
          "video": video,
          "image_id": ann["image_id"],
          "instance_id": ann["instance_id"],
      }
  
imports: import os
  import math
  from lavis.datasets.datasets.base_dataset import BaseDataset
  from lavis.datasets.datasets.caption_datasets import CaptionDataset
label_desc: Use image node_id 3 for calling the VideoCaptionEvalDataset obj's underlying member method code with example usage: obj.__getitem__(index) and returns: dict, None