code: def test_conditional_jit_numba_decorator():
      """Tests to see if Numba is used.
  
      Test can be distinguished from test_conditional_jit_decorator_no_numba
      by use of debugger or coverage tool
      """
      from ... import utils
  
      @utils.conditional_jit
      def func():
          return True
  
      assert func()
  
imports: from unittest.mock import Mock
  import numpy
  import pytest
  import scipy.stats
  from ...data import dict_to_dataset, from_dict, load_arviz_data
  from ...stats.density_utils import _circular_mean, _normalize_angle, _find_hdi_contours
  from ...utils import _stack, _subset_list, _var_names, expand_dims, flatten_inference_data_to_dict, one_de, two_de
  from ..helpers import TestRandomVariable
label_desc: Use image node_id 14 for calling a global function with example usage: test_conditional_jit_numba_decorator() and returns: True