def get_subfolders(self):
        """Retrieve all child Folders inside of this Folder.

        Raises:
            AuthError: Raised if Outlook returns a 401, generally caused by an invalid or expired access token.

        Returns:
            List[:class:`Folder <pyOutlook.core.folder.Folder>`]
        """
        headers = self.headers
        endpoint = 'https://outlook.office.com/api/v2.0/me/MailFolders/' + self.id + '/childfolders'

        r = requests.get(endpoint, headers=headers)

        if check_response(r):
            return self._json_to_folders(self.account, r.json())
Retrieve all child Folders inside of this Folder.

        Raises:
            AuthError: Raised if Outlook returns a 401, generally caused by an invalid or expired access token.

        Returns:
            List[:class:`Folder <pyOutlook.core.folder.Folder>`]