code: def test_overlay_comparison_unequal_sizes(self):
      t1 = self.el1 * self.el2
      t2 = self.el1 * self.el2 * self.el3
      try:
          self.assertEqual(t1, t2)
      except AssertionError as e:
          self.assertEqual(
              str(e), "Overlays have mismatched path counts."
          )
  
file_path: holoviews/holoviews/tests/element/test_comparisoncomposite.py
imports: from holoviews import Element
  from holoviews.element.comparison import ComparisonTestCase
label_desc: Use image node_id 11 for calling the CompositeComparisonTestCase obj's underlying member method code with example usage: obj.test_overlay_comparison_unequal_sizes() without return types