消费者也能分发消息,不太懂内部的原理

Since it is the consumers instead of the broker who dispatch the messages from the batches, the key of the first message in one batch is considered as the key to all messages in this batch, thereby leading to context errors

第一句话:Since it is the consumers instead of the broker who dispatch the messages from the batches
意思是消息者也有分发消息的功能?