def resume(self, email, master_token, state=None, sync=True):
        """Authenticate to Google with the provided master token & sync.

        Args:
            email (str): The account to use.
            master_token (str): The master token.
            state (dict): Serialized state to load.

        Raises:
            LoginException: If there was a problem logging in.
        """
        auth = APIAuth(self.OAUTH_SCOPES)

        ret = auth.load(email, master_token, android_id=get_mac())
        if ret:
            self.load(auth, state, sync)

        return ret