code: def __getitem__(self, idx):
      imgs1 = self.process_batch(
          {"image": self.imgs1[idx]}, task="image-vectorisation"
      )
      imgs2 = self.process_batch(
          {"image": self.imgs2[idx]}, task="image-vectorisation"
      )
  
      similarity_scores = torch.tensor(self.similarity_scores[idx])
  
      return imgs1, imgs2, similarity_scores
  
imports: import torch
  from torch.utils.data import Dataset
  from PIL import Image
  import numpy
label_desc: Use image node_id 3 for calling the ImagePairDataset obj's underlying member method code with example usage: obj.__getitem__(idx) and returns: imgs1,  imgs2,  similarity_scores