class_docstr: A Node instance is used for composing tree-based structures.
class_docstr_tok: ["A","Node","instance","is","used","for","composing","tree-based","structures","."]
docstr: Minimum depth of node.
docstr_tok: ["Minimum","depth","of","node","."]
code: def min_depth(self) -> int:
      """Minimum depth of node."""
  
      return _properties(self)["min_depth"]
  
imports: from __future__ import annotations
  from typing import Any, Dict, List, Optional, Union
  import numpy
  import opytimizer.utils.constant
  import opytimizer.utils.exception
label_desc: Use image node_id 18 for calling the Node obj's underlying member method code with example usage: obj.min_depth() and returns: _properties