provider ./{ns}.{name}.yml

"http://rss.cnn.com/rss/edition_world.rss" -> url Rss(network/rss)

Rss out -> msg Log(console/log) out -> msg SayIt(console/say)

# "http://rss.cnn.com/rss/edition_world.rss" -> uri Request(network/request)
# Request out -> msg SayIt(console/say)
# Request out -> msg Log(console/log)