Warning when compile documentation (missing 'PersonDict' & 'AttributeDict')

In attempt to compile documentation:

docs\make.bat html

you're receiving:

Running Sphinx v4.3.2
making output directory... done
building [mo]: targets for 0 po files that are out of date
building [html]: targets for 20 source files that are out of date
updating environment: [new config] 20 added, 0 changed, 0 removed
reading sources... [100%] utilities
WARNING: autodoc: failed to import class 'PersonDict' from module 'sc2reader.utils'; the following exception was raised:

Traceback (most recent call last):
  File "c:\users\alex\appdata\local\programs\python\python38-32\lib\site-packages\sphinx\util\inspect.py", line 448, in
safe_getattr
    return getattr(obj, name, *defargs)
AttributeError: module 'sc2reader.utils' has no attribute 'PersonDict'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "c:\users\alex\appdata\local\programs\python\python38-32\lib\site-packages\sphinx\ext\autodoc\importer.py", line
110, in import_object
    obj = attrgetter(obj, mangled_name)
  File "c:\users\alex\appdata\local\programs\python\python38-32\lib\site-packages\sphinx\ext\autodoc\__init__.py", line
332, in get_attr
    return autodoc_attrgetter(self.env.app, obj, name, *defargs)
  File "c:\users\alex\appdata\local\programs\python\python38-32\lib\site-packages\sphinx\ext\autodoc\__init__.py", line
2780, in autodoc_attrgetter
    return safe_getattr(obj, name, *defargs)
  File "c:\users\alex\appdata\local\programs\python\python38-32\lib\site-packages\sphinx\util\inspect.py", line 464, in
safe_getattr
    raise AttributeError(name) from exc
AttributeError: PersonDict

WARNING: autodoc: failed to import class 'AttributeDict' from module 'sc2reader.utils'; the following exception was rais
ed:
Traceback (most recent call last):
  File "c:\users\alex\appdata\local\programs\python\python38-32\lib\site-packages\sphinx\util\inspect.py", line 448, in
safe_getattr
    return getattr(obj, name, *defargs)
AttributeError: module 'sc2reader.utils' has no attribute 'AttributeDict'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "c:\users\alex\appdata\local\programs\python\python38-32\lib\site-packages\sphinx\ext\autodoc\importer.py", line
110, in import_object
    obj = attrgetter(obj, mangled_name)
  File "c:\users\alex\appdata\local\programs\python\python38-32\lib\site-packages\sphinx\ext\autodoc\__init__.py", line
332, in get_attr
    return autodoc_attrgetter(self.env.app, obj, name, *defargs)
  File "c:\users\alex\appdata\local\programs\python\python38-32\lib\site-packages\sphinx\ext\autodoc\__init__.py", line
2780, in autodoc_attrgetter
    return safe_getattr(obj, name, *defargs)
  File "c:\users\alex\appdata\local\programs\python\python38-32\lib\site-packages\sphinx\util\inspect.py", line 464, in
safe_getattr
    raise AttributeError(name) from exc
AttributeError: AttributeDict

looking for now-outdated files... none found
pickling environment... done
checking consistency... done
preparing documents... done
writing output... [100%] utilities
generating indices... genindex py-modindex done
highlighting module code... [100%] sc2reader.utils
writing additional pages... search done
copying static files... done
copying extra files... done
dumping search index in English (code: en)... done
dumping object inventory... done
build succeeded, 2 warnings.

The HTML pages are in build\html.

Build finished. The HTML pages are in build/html.

At the moment the following branch is used until it is merged: https://github.com/cclauss/sc2reader/tree/patch-4
(see: https://github.com/ggtracker/sc2reader/issues/157 )

Run docs\make.bat html and inspect the documentation entry that autodoc uses for sc2reader.utils, along with the current definitions or references for PersonDict and AttributeDict. Determine whether the documentation references obsolete classes or the module is missing them; done means the documentation build completes without these two warnings.