You can search for identifiers within the package.
in-package search v0.2.0
sihl.message
Sihl_message.Service
module Core = Sihl_core
module Session = Sihl_session
module Entry : sig ... end
val log_src : Logs.src
module Logs : Logs.LOG
val session_key : string
module Make (SessionService : Session.Sig.SERVICE) : Sig.SERVICE