def connect(self):
logger.debug('<STR_LIT>', self._url)<EOL>return pika.SelectConnection(pika.URLParameters(self._url),<EOL>self.on_connection_open,<EOL>stop_ioloop_on_close=False)<EOL>
Connect to RabbitMQ, returning the connection handle.

        When the connection is established, the on_connection_open method
        will be invoked by pika.

        :rtype: pika.SelectConnection