public static MimeType getOutputMimeType(Module module) {
		String contentTypeString = module.getProperties().getProperty(OUTPUT_TYPE);
		return getMimeType(contentTypeString, module);
	}
Return {@link org.springframework.util.MimeType} for the module's output channel.

@param module the underlying module
@return MimeType for the module's output channel, null if not set
spring-xd-dirt/src/main/java/org/springframework/xd/dirt/plugins/stream/ModuleTypeConversionSupport.java