code: def test_constant_property():
      space = Space(
          [
              (0.0, 1.0),
              (1,),
              ("a", "b", "c"),
              (1.0, 5.0, "log-uniform"),
              ("e",),
          ]
      )
      assert space.n_constant_dimensions == 2
      for i in [1, 4]:
          assert space.dimensions[i].is_constant
      for i in [0, 2, 3]:
          assert not space.dimensions[i].is_constant
  
imports: import pytest
  import numbers
  import numpy
  import os
  import yaml
  from tempfile import NamedTemporaryFile
  from numpy.testing import assert_array_almost_equal
  from numpy.testing import assert_array_equal
  from numpy.testing import assert_equal
  from numpy.testing import assert_raises_regex
  from skopt import Optimizer
  from skopt.space import Space
  from skopt.space import Real
  from skopt.space import Integer
  from skopt.space import Categorical
  from skopt.space import check_dimension
  from skopt.utils import normalize_dimensions
label_desc: Use image node_id 15 for calling a global function with example usage: test_constant_property() without return types