How to use the pyclowder.extractors.connect_message_bus function in pyclowder

def main():
	global extractorName, messageType, rabbitmqExchange, rabbitmqURL

	# Set logging
	logging.basicConfig(format='%(levelname)-7s : %(name)s -  %(message)s', level=logging.WARN)
	logging.getLogger('pyclowder.extractors').setLevel(logging.INFO)

	# Connect to rabbitmq
	extractors.connect_message_bus(
		extractorName        = extractorName,
		messageType          = messageType,
		rabbitmqExchange     = rabbitmqExchange,
		rabbitmqURL          = rabbitmqURL,
		processFileFunction  = process_dataset,
		checkMessageFunction = check_message
	)

def main():
    global extractorName, messageType, rabbitmqExchange, rabbitmqURL, registrationEndpoints

    #set logging
    logging.basicConfig(format='%(levelname)-7s : %(name)s -  %(message)s', level=logging.WARN)
    logging.getLogger('pyclowder.extractors').setLevel(logging.INFO)

    #connect to rabbitmq
    extractors.connect_message_bus(extractorName=extractorName, messageType=messageType, processFileFunction=process_dataset,
                                   checkMessageFunction=check_message, rabbitmqExchange=rabbitmqExchange, rabbitmqURL=rabbitmqURL)

def main():
    global extractorName, messageType, rabbitmqExchange, rabbitmqURL, registrationEndpoints

    #set logging
    logging.basicConfig(format='%(levelname)-7s : %(name)s -  %(message)s', level=logging.WARN)
    logging.getLogger('pyclowder.extractors').setLevel(logging.INFO)

    #connect to rabbitmq
    extractors.connect_message_bus(extractorName=extractorName, messageType=messageType, processFileFunction=process_dataset,
        checkMessageFunction=check_message, rabbitmqExchange=rabbitmqExchange, rabbitmqURL=rabbitmqURL)

def main():
    global extractorName, messageType, rabbitmqExchange, rabbitmqURL, registrationEndpoints

    #set logging
    logging.basicConfig(format='%(levelname)-7s : %(name)s -  %(message)s', level=logging.WARN)
    logging.getLogger('pyclowder.extractors').setLevel(logging.INFO)

    #connect to rabbitmq
    extractors.connect_message_bus(extractorName=extractorName, messageType=messageType, processFileFunction=process_dataset,
        checkMessageFunction=check_message, rabbitmqExchange=rabbitmqExchange, rabbitmqURL=rabbitmqURL)