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 -> 'a t
val remove : 'a t -> S.t -> unit
val set : 'a t -> S.t -> 'a -> unit
val find : 'a t -> S.t -> 'a
val find_opt : 'a t -> S.t -> 'a option
val mem : 'a t -> S.t -> bool
val change : ('a option -> 'a option) -> 'a t -> S.t -> unit