You can search for identifiers within the package.
in-package search v0.2.0
module type ARRAY = sig ... end
module type ENTRY = sig ... end
module type METRIC = sig ... end
module type S = sig ... end
module Make (Entry : ENTRY) (Array : ARRAY with type elt = Entry.t) (Metric : METRIC with module Entry := Entry) : S with module Entry := Entry and module Array := Array