Did I find the right examples for you? yes no

All Samples(1)  |  Call(0)  |  Derive(0)  |  Import(1)
Address Family Idenitifier (AFI)
http://www.iana.org/assignments/address-family-numbers/address-family-numbers.xhtml

src/r/y/ryu-3.8/ryu/lib/packet/bgp.py   ryu(Download)
 
import safi
import afi