code: def test_tree_space_min_depth():
      new_tree_space = tree.TreeSpace(1, 1, 0, 1)
  
      assert new_tree_space.min_depth == 1
  
imports: from opytimizer.core import node
  from opytimizer.spaces import tree
label_desc: Use image node_id 3 for calling a global function with example usage: test_tree_space_min_depth() without return types