public RocketMQConsumerProperties setPullThresholdForQueue(
			int pullThresholdForQueue) {
		this.pullThresholdForQueue = pullThresholdForQueue;
		return this;
	}
Consume max span offset.it has no effect on sequential consumption.
spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/properties/RocketMQConsumerProperties.java