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: Representation of a formal string.
docstr_tok: ["Representation","of","a","formal","string","."]
code: def __repr__(self) -> str:
      """Representation of a formal string."""
  
      return f"{self.category}:{self.name}:{self.flag}"
  
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 2 for calling the Node obj's underlying member method code with example usage: obj.__repr__() and returns: self, str, self, str, self