Connect to the websocket, and ensure the account is connected and
        the INBOX is being watched, and then start watchingAll.

def opened(self):
        """Connect to the websocket, and ensure the account is connected and
        the INBOX is being watched, and then start watchingAll.
        """
        def post_setup((cmds, resps)):
            """Post setup callback."""
            logger.info("Setup complete, listening...")

        self.send_cmds(('connect', CONN_SPEC),
                       ('watchMailboxes', {'account': ACCOUNT,
                                           'list': ['INBOX']}),
                       ('watchAll', {})).then(post_setup)