@ModuleOption("the qos; a single value for all topics or a comma-delimited list to match the topics")
	public void setQos(String qos) {
		this.qos = qos;
	}
Describes options to the {@code mqtt} source module.

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