code: def __init__(self, title: str, children: list[StructureItem]) -> None:
      self.title = title
      self.children = children
  
      self.active = False
  
imports: from __future__ import annotations
  import logging
  from typing import TYPE_CHECKING, Iterator, TypeVar
  from urllib.parse import urlsplit
  from mkdocs.exceptions import BuildError
  from mkdocs.structure import StructureItem
  from mkdocs.structure.pages import Page, _AbsoluteLinksValidationValue
  from mkdocs.utils import nest_paths
label_desc: Use image node_id 1 to create a new Section object from inherited base classes: StructureItem with example: obj = Section(title, children)