service Testo("testo"):
    getString: string -> string

service LocalPrint("lp"):
    print: string -> ()


func topologyTest(me: string, myRelay: string, friend: string, friendRelay: string) -> string:
    on friend via friendRelay:
        str2 <- Testo.getString("friends string via")
    par LocalPrint.print("my string in par")
    LocalPrint.print(str2)
    <- "finish"