code: def test_attr_item(self):
      # test that equal objects can be retrieved using attr or item
      # syntax
      self.assertEqual(self.figure.data, self.figure["data"])
      self.assertEqual(self.figure.layout, self.figure["layout"])
      self.assertEqual(self.figure.frames, self.figure["frames"])
  
imports: from unittest import TestCase
  import pytest
  import plotly.graph_objs
  import plotly.io
label_desc: Use image node_id 6 for calling the TestFigureProperties obj's underlying member method code with example usage: obj.test_attr_item() without return types