module type S : sig ... end
Suffix of a normal trace: just sinks and passthroughs, but no sources
module MakeSink : functor (TraceElem : TraceElem.S) -> Sink.S with module Kind = TraceElem.Kind and type t = TraceElem.t
module Make : functor (TraceElem : TraceElem.S) -> S with module Source = Source.Dummy and module Sink = MakeSink(TraceElem)