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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 async def connect(self, retry=2):
 """Connect to Mill."""

        # pylint: disable=too-many-return-statements
        url = API_ENDPOINT_1 + 'login'
        headers = {
            "Content-Type": "application/x-zc-object",
            "Connection": "Keep-Alive",
            "X-Zc-Major-Domain": "seanywell",
            "X-Zc-Msg-Name": "millService",
            "X-Zc-Sub-Domain": "milltype",
            "X-Zc-Seq-Id": "1",
            "X-Zc-Version": "1",
        }
        payload = {"account": self._username,
                   "password": self._password}
        try:
            with async_timeout.timeout(self._timeout):
                resp = await self.websession.post(url,
                                                  data=json.dumps(payload),
                                                  headers=headers)
        except (asyncio.TimeoutError, aiohttp.ClientError):
            if retry < 1:
                _LOGGER.error("Error connecting to Mill", exc_info=True)
                return False
            return await self.connect(retry - 1)

        result = await resp.text()
        if '"errorCode":3504' in result:
            _LOGGER.error('Wrong password')
            return False

        if '"errorCode":3501' in result:
            _LOGGER.error('Account does not exist')
            return False

        data = json.loads(result)
        token = data.get('token')
        if token is None:
            _LOGGER.error('No token')
            return False

        user_id = data.get('userId')
        if user_id is None:
            _LOGGER.error('No user id')
            return False

        self._token = token
        self._user_id = user_id
        return True