public PartitioningInterceptor getPartitioningInterceptor() {
		return partitioningInterceptor;
	}
https://github.com/alibaba/spring-cloud-alibaba/issues/1408 .
@param message message
@return SendCallback
spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/integration/outbound/RocketMQProducerMessageHandler.java