code: def test_float_heterogeneous_unequal1(self):
      try:
          self.assertEqual(np.float32(3.52), 3.5)
      except AssertionError as e:
          if not str(e).startswith(
              "Floats not almost equal to 6 decimals"
          ):
              raise self.failureException(
                  "Numpy float mismatch error not raised."
              )
  
imports: import numpy
  from holoviews.core import BoundingBox
  from holoviews.element.comparison import ComparisonTestCase
label_desc: Use image node_id 7 for calling the SimpleComparisonTest obj's underlying member method code with example usage: obj.test_float_heterogeneous_unequal1() without return types