package client type Client interface { // Create a producer instance CreateProducer(options ProducerOptions) (Producer, error) // Create a consumer instance and subscribe a topic Subscribe(options ConsumerOptions) (Consumer, error) // Get the earliest MessageID EarliestMessageID() MessageID // String to msg ID StringToMsgID(string) (MessageID, error) // Bytes to msg ID BytesToMsgID([]byte) (MessageID, error) // Close the client and free associated resources Close() }