code: def test_real_distance():
      # TODO: Refactor - Use PyTest
      reals = Real(1, 10)
      for i in range(1, 10 + 1):
          assert_equal(reals.distance(4.1234, i), abs(4.1234 - i))
  
imports: from hyperparameter_hunter.optimization.backends.skopt.engine import Optimizer
  from hyperparameter_hunter.space.dimensions import Real, Integer, Categorical
  from hyperparameter_hunter.space.space_core import Space, check_dimension, normalize_dimensions
  import numbers
  import numpy
  import pytest
  from sklearn.utils.testing import assert_array_almost_equal, assert_array_equal, assert_equal
label_desc: Use image node_id 22 for calling a global function with example usage: test_real_distance() without return types