You can search for identifiers within the package.
in-package search v0.2.0
goblint.lib
CurrentVarS.S
type v = S.v
type d = S.d
module Var : sig ... end
module Dom : sig ... end
val sys_change : (v -> d) -> v Goblint_lib__Analyses.sys_change_info
val system : S.v -> ((S.v -> S.d) -> (S.v -> S.d -> unit) -> S.d) option