code: def dataloader(data):
      # Create a DataLoader for the dummy data.
      return DataLoader(data, batch_size=4)
  
imports: import pytest
  import torch
  import torch.nn
  from torch.utils.data import DataLoader, TensorDataset
  from kale.embed.image_cnn import SimpleCNNBuilder
  from kale.pipeline.base_nn_trainer import BaseNNTrainer, CNNTransformerTrainer, MultimodalNNTrainer
  from kale.predict.class_domain_nets import ClassNet
label_desc: Use image node_id 2 for calling a global function with example usage: dataloader(data) and returns: DataLoader