def METHOD_NAME(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 (cmap='hot')", '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'), 'style').options.get('cmap',None),'hot')