DSPs generally run standalone. One option is to specify an output template to a Flow or Java service - you can use DSP style tags there.
As Nath said, if you want to use a template to apply to your pipeline itself, another option is to use the services in the WmPublic/pub.report folder. Something like pub.report:runStringTemplateOnPipe or pub.report:runTemplateOnPipe may be what you need.
#webMethods#Integration-Server-and-ESB#Flow-and-Java-services