The new version (Keep It Simple...)
Remove dependencies between modules/users!

each module is made of a number of filter-classifier pairs;



module foo {
a: filter "proto udp" classifier "my-udp"
b: filter "proto tcp" classifier "elephants"
c: filter "tcp port 80" classifier "count-flows"
.  query "count a.flows"
.  query "top_flows(c, 10)"
}