You can search for identifiers within the package.
in-package search v0.2.0
module S : Colibri2_popop_lib.Popop_stdlib.Datatype
type 'a t
val create : creator -> (creator -> S.t -> 'a) -> 'a t
val find : 'a t -> S.t -> 'a
val iter : (S.t -> 'a -> unit) -> 'a t -> unit
val fold : (S.t -> 'a -> 'acc -> 'acc) -> 'a t -> 'acc -> 'acc