code: def __getitem__(self, idx):
      image = self.process_batch(
          {"image": self.images[idx]}, task="image-vectorisation"
      )
  
      group = torch.tensor(self.groups[idx])
  
      return image, group
  
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 ImageGroupDataset obj's underlying member method code with example usage: obj.__getitem__(idx) and returns: image,  group