code: def test_titles_converted_to_annotations(self):
      fig = figure_grid(
          [
              [
                  {
                      "data": [{"type": "scatter", "y": [1, 3, 2]}],
                      "layout": {
                          "width": 400,
                          "height": 400,
                          "title": "Scatter!",
                      },
                  }
              ],
              [
                  {
                      "data": [{"type": "bar", "y": [2, 3, 1]}],
                      "layout": {
                          "width": 400,
                          "height": 400,
                          "title": "Bar!",
                      },
                  }
              ],
          ],
          row_spacing=100,
      )
  
      # Validate resulting figure object
      go.Figure(fig)
  
      self.assertNotIn("title", fig["layout"])
      self.assertEqual(len(fig["layout"]["annotations"]), 2)
      self.assertEqual(
          fig["layout"]["annotations"][0]["text"], "Scatter!"
      )
      self.assertEqual(fig["layout"]["annotations"][1]["text"], "Bar!")
  
      # Check width and height
      self.assertEqual(fig["layout"]["width"], 400)
      self.assertEqual(fig["layout"]["height"], 900)
  
imports: import plotly.graph_objs
  import pyviz_comms
  from param import concrete_descendents
  from holoviews.core import Store
  from holoviews.element.comparison import ComparisonTestCase
  from holoviews.plotting.plotly.element import ElementPlot
  from holoviews.plotting.plotly.util import figure_grid
  from ..None import option_intersections
label_desc: Use image node_id 4 for calling the TestPlotlyFigureGrid obj's underlying member method code with example usage: obj.test_titles_converted_to_annotations() without return types