code: def data():
      return Data(
          x=torch.randn(4, 3),
          edge_index=get_random_edge_index(4, 4, num_edges=6),
          edge_attr=torch.randn(6, 3),
      )
  
file_path: pytorch_geometric/test/explain/conftest.py
imports: from typing import Optional
  import pytest
  import torch
  from torch_geometric.data import Data, HeteroData
  from torch_geometric.explain import Explanation
  from torch_geometric.explain.config import MaskType
  from torch_geometric.nn import SAGEConv, to_hetero
  from torch_geometric.testing import get_random_edge_index
label_desc: Use image node_id 1 for calling a global function with example usage: data() and returns: Data