@internationalizeDocstring
    def change(self, irc, msg, args, channel, user, changer):
        self._preCheck(irc, msg, user)
        s = self.db[channel, user.id]
        newS = changer(s)
        self.db[channel, user.id] = newS
        irc.replySuccess()
uploading an invalid value for image should return an empty list.
dataset/ETHPy150Open ProgVal/Limnoria/plugins/Herald/plugin.py/Herald.change--crossover with--dataset/ETHPy150Open ofa/connect/open_connect/media/tests/test_views.py/ImageViewsTest.test_upload_photos_invalid