the given consumer
HighLevelConsumer.addTopics()
HighLevelConsumer.addTopics()
HighLevelConsumer.close()
HighLevelConsumer.close()
HighLevelConsumer.commit()
the given consumer
consumer.on('error', function (message) {})
HighLevelConsumer.on()
consumer.on('message', function (message) {})
HighLevelConsumer.on()
on('offsetOutOfRange', function (err) {})
HighLevelConsumer.on()
HighLevelConsumer.removeTopics()
High Level Consumer Extensions