code: def test_get_min_samples_leaf(shadow_dec_tree):
      assert (
          shadow_dec_tree.get_min_samples_leaf() == 1
      ), "min_samples_leaf should be 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 20 for calling a global function with example usage: test_get_min_samples_leaf(shadow_dec_tree) without return types