code: def _indent_print(self, depth: int = 0) -> str:
      ret = [super()._indent_print(depth)]
      for item in self.children:
          ret.append(item._indent_print(depth + 1))
      return "\n".join(ret)
  
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 5 for calling the Section obj's underlying member method code with example usage: obj._indent_print(depth) and returns: str