code: def test_matplotlib_plot_definitions(self):
      self.assertEqual(
          option_intersections("matplotlib"), self.known_clashes
      )
  
file_path: holoviews/holoviews/tests/plotting/matplotlib/test_plot.py
imports: import matplotlib.pyplot
  import pyviz_comms
  from packaging.version import Version
  from param import concrete_descendents
  from holoviews.core.options import Store
  from holoviews.element.comparison import ComparisonTestCase
  from holoviews.plotting.mpl import mpl_version
  from holoviews.plotting.mpl.element import ElementPlot
  from ..None import option_intersections
label_desc: Use image node_id 1 for calling the TestPlotDefinitions obj's underlying member method code with example usage: obj.test_matplotlib_plot_definitions() without return types