You can search for identifiers within the package.
in-package search v0.2.0
coq-serapi.serlib
Ser_libobject.Dyn
type t = Libobject.Dyn.t
module Reified : sig ... end
val t_of_sexp : Sexplib.Sexp.t -> 'a
val sexp_of_t : Libobject.Dyn.t -> Sexplib0.Sexp.t