code: def test_get_children_left(shadow_dec_tree):
      assert np.array_equal(
          shadow_dec_tree.get_children_left(),
          np.array(
              [1, 2, 3, -1, -1, 6, -1, -1, 9, 10, -1, -1, 13, -1, -1]
          ),
      )
  
imports: import joblib
  import numpy
  import pytest
  from sklearn.tree import DecisionTreeRegressor, DecisionTreeClassifier
  from dtreeviz.models.sklearn_decision_trees import ShadowSKDTree
label_desc: Use image node_id 14 for calling a global function with example usage: test_get_children_left(shadow_dec_tree) without return types