code: def setup(app: Sphinx) -> None:
      app.setup_extension(
          "sphinx.ext.autodoc"
      )  # Require autodoc extension
      app.add_autodocumenter(IntEnumDocumenter)
  
file_path: sphinx/doc/development/tutorials/examples/autodoc_intenum.py
imports: from __future__ import annotations
  from enum import IntEnum
  from typing import TYPE_CHECKING, Any
  from sphinx.ext.autodoc import ClassDocumenter, bool_option
label_desc: Use image node_id 1 for calling a global function with example usage: setup(app) without return types