@ModuleOption("the routing key to be passed with the message, as a SpEL expression")
	public void setRoutingKey(String routingKey) {
		this.routingKey = routingKey;
	}
Captures options to the {@code rabbit} sink module.

@author Eric Bottard
@author Gary Russell
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/modules/metadata/RabbitSinkOptionsMetadata.java