code: def test_dimension_comparison_equal1(self):
      self.assertEqual(self.dimension1, self.dimension1)
  
imports: from holoviews.core import Dimension, Dimensioned
  from holoviews.element.comparison import ComparisonTestCase
label_desc: Use image node_id 2 for calling the DimensionsComparisonTestCase obj's underlying member method code with example usage: obj.test_dimension_comparison_equal1() without return types