You can search for identifiers within the package.
in-package search v0.2.0
type t
val empty : t
val ui : Nottui.ui -> t
val hardline : t
val blank : int -> t
val if_flat : t -> t -> t
val break : int -> t
val (^^) : t -> t -> t
val nest : int -> t -> t
val group : t -> t
val pretty : int -> t -> Nottui.ui