@Override
	public RocketMQConsumerProperties getExtendedConsumerProperties(String channelName) {
		return this.extendedBindingProperties.getExtendedConsumerProperties(channelName);
	}
Binders can return an {@link ErrorMessageStrategy} for building error messages;
binder implementations typically might add extra headers to the error message.
@return the implementation - may be null.
spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/RocketMQMessageChannelBinder.java