Test trans
include trans
include seq_num
include udp
type id
type req
type shard
type data
instance seq_num : sequence_numbers
instance t : net(u,req,shard,seq_num,data)
instance u : udp_simple(id,t.net_msg.t)
isolate iso_t = t.impl with t,u,seq_num
export t.send_request
export t.send_delegate
import t.recv_request
import t.recv_delegate