code: def test_data_setter_properties():
      class MyData(Data):
          def __init__(self):
              super().__init__()
              self.my_attr1 = 1
              self.my_attr2 = 2
  
          @property
          def my_attr1(self):
              return self._my_attr1
  
          @my_attr1.setter
          def my_attr1(self, value):
              self._my_attr1 = value
  
      data = MyData()
      assert data.my_attr2 == 2
  
      assert "my_attr1" not in data._store
      assert data.my_attr1 == 1
  
      data.my_attr1 = 2
      assert "my_attr1" not in data._store
      assert data.my_attr1 == 2
  
imports: import copy
  import pytest
  import torch
  import torch.multiprocessing
  import torch_geometric
  from torch_geometric.data import Data
  from torch_geometric.data.storage import AttrType
  from torch_geometric.testing import get_random_tensor_frame, withPackage
label_desc: Use image node_id 12 for calling a global function with example usage: test_data_setter_properties() and returns: self