How to use the steampy.guard function in steampy

def login(self, username: str, password: str, steam_guard: str) -> None:
        self.steam_guard = guard.load_steam_guard(steam_guard)
        self.username = username
        self._password = password
        LoginExecutor(username, password, self.steam_guard['shared_secret'], self._session).login()
        self.was_login_executed = True
        self.market._set_login_executed(self.steam_guard, self._get_session_id())