code: def test_cell_opts_plot_float_division(self):
      self.cell("mat1 = Image(np.random.rand(5,5), name='mat1')")
  
      self.assertEqual(self.get_object("mat1").id, None)
      self.cell_magic("opts", " Image [aspect=3/4]", "mat1")
      self.assertEqual(self.get_object("mat1").id, 0)
  
      assert (
          0 in Store.custom_options()
      ), "Custom OptionTree creation failed"
      self.assertEqual(
          Store.lookup_options(
              "matplotlib", self.get_object("mat1"), "plot"
          ).options.get("aspect", False),
          3 / 4.0,
      )
  
imports: from unittest import SkipTest
  import holoviews
  from holoviews.core.options import Store
  from pyviz_comms import CommManager
  from holoviews.operation import Compositor
label_desc: Use image node_id 5 for calling the TestOptsMagic obj's underlying member method code with example usage: obj.test_cell_opts_plot_float_division() without return types