autosummary toctree, include function function details

Question

I would like to automatically generate pages with the summary of the submodules, and the details.

I have

|-foo
| |- __init__.py 
| |- bar.py
|-docs
| |- conf.py
| |- Makefile
| |- make.bat
| |- index.rst

foo/bar.py:

def myfunc():
    """
    This is a function.

    :return: A number.
    """
    return 1

def myotherfunc():
    """
    This is another function

    :return: A number.
    """
    return 2

docs/conf.py

import os
import sys

sys.path.insert(0, os.path.abspath(".."))

project = "foo"
copyright = "2024"
author = "Tom de Geus"
exclude_patterns = ["_build"]
extensions = [
    "sphinx.ext.autodoc",
    "sphinx.ext.autosummary",
]

docs/index.rst

.. currentmodule:: foo

.. autosummary::
    :toctree: generated

    bar

This is what I get (and want in red):

In particular, I would like to add

.. automodule:: foo.bar
    :members:

to docs/generated/foo.bar.rst, that is currently:

foo.bar
=======

.. automodule:: foo.bar

   .. rubric:: Functions

   .. autosummary::

      myfunc
      myotherfunc