code: def test_get_children_left(tf_shadow_clf):
      assert tf_shadow_clf.get_children_left() == {
          0: 1,
          1: 2,
          4: 5,
          2: -1,
          3: -1,
          5: -1,
          6: -1,
      }
  
imports: import pytest
  import numpy
  import tensorflow_decision_forests
  from dtreeviz.models.tensorflow_decision_tree import ShadowTensorflowTree
label_desc: Use image node_id 5 for calling a global function with example usage: test_get_children_left(tf_shadow_clf) without return types