How to use the osxphotos.albuminfo.FolderInfo function in osxphotos

def _recurse_folder_hierarchy(folders, hierarchy=[]):
            """ recursively walk the folders dict to build list of folder hierarchy """
            # logging.warning(f"folders={folders},hierarchy = {hierarchy}")
            if not folders:
                # empty folder dict (album has no folder hierarchy)
                return []

            if len(folders) != 1:
                raise ValueError("Expected only a single key in folders dict")

            folder_uuid = list(folders)[0]  # first and only key of dict
            hierarchy.append(FolderInfo(db=self, uuid=folder_uuid))

            folders = folders[folder_uuid]
            if folders:
                # still have elements left to recurse
                hierarchy = _recurse_folder_hierarchy(folders, hierarchy=hierarchy)
                return hierarchy

            # no elements left to recurse
            return hierarchy

def folder_info(self):
        """ return list FolderInfo objects representing top-level folders in the photos database """
        if self._db_version <= _PHOTOS_4_VERSION:
            folders = [
                FolderInfo(db=self, uuid=folder)
                for folder, detail in self._dbfolder_details.items()
                if not detail["intrash"]
                and not detail["isMagic"]
                and detail["parentFolderUuid"] == _PHOTOS_4_TOP_LEVEL_ALBUM
            ]
        else:
            folders = [
                FolderInfo(db=self, uuid=album)
                for album, detail in self._dbalbum_details.items()
                if not detail["intrash"]
                and detail["kind"] == _PHOTOS_5_FOLDER_KIND
                and detail["parentfolder"] == self._folder_root_pk
            ]
        return folders

def parent(self):
        """ returns FolderInfo object for parent folder or None if no parent (e.g. top-level album) """
        try:
            return self._parent
        except AttributeError:
            if self._db._db_version <= _PHOTOS_4_VERSION:
                parent_uuid = self._db._dbalbum_details[self._uuid]["folderUuid"]
                self._parent = (
                    FolderInfo(db=self._db, uuid=parent_uuid)
                    if parent_uuid != _PHOTOS_4_TOP_LEVEL_ALBUM
                    else None
                )
            else:
                parent_pk = self._db._dbalbum_details[self._uuid]["parentfolder"]
                self._parent = (
                    FolderInfo(db=self._db, uuid=self._db._dbalbums_pk[parent_pk])
                    if parent_pk != self._db._folder_root_pk
                    else None
                )
            return self._parent

def _recurse_folder_hierarchy(folders, hierarchy=[]):
            """ recursively walk the folders dict to build list of folder hierarchy """

            if not folders:
                # empty folder dict (album has no folder hierarchy)
                return []

            if len(folders) != 1:
                raise ValueError("Expected only a single key in folders dict")

            folder_uuid = list(folders)[0]  # first and only key of dict
            hierarchy.append(FolderInfo(db=self, uuid=folder_uuid))

            folders = folders[folder_uuid]
            if folders:
                # still have elements left to recurse
                hierarchy = _recurse_folder_hierarchy(folders, hierarchy=hierarchy)
                return hierarchy

            # no elements left to recurse
            return hierarchy

def subfolders(self):
        """ return list of folders (as FolderInfo objects) contained in the folder """
        try:
            return self._folders
        except AttributeError:
            if self._db._db_version <= _PHOTOS_4_VERSION:
                folders = [
                    FolderInfo(db=self._db, uuid=folder)
                    for folder, detail in self._db._dbfolder_details.items()
                    if not detail["intrash"]
                    and not detail["isMagic"]
                    and detail["parentFolderUuid"] == self._uuid
                ]
            else:
                folders = [
                    FolderInfo(db=self._db, uuid=album)
                    for album, detail in self._db._dbalbum_details.items()
                    if not detail["intrash"]
                    and detail["kind"] == _PHOTOS_5_FOLDER_KIND
                    and detail["parentfolder"] == self._pk
                ]
            self._folders = folders
            return self._folders