This is code copied from a slide entitled "Hello World" in SCION for this talk at FOSDEM called SCION Future internet that you can use today
https://www.youtube.com/watch?v=TtfXrLmOgqY
I'm pasting it here so I can refer to in a conversation on the community mailing list linked on the SCION site below: https://www.scion-architecture.net/