You can search for identifiers within the package.
in-package search v0.2.0
type +'a t
val none : 'a t
val some_unsafe : 'a -> 'a t
val get_unsafe : 'a t -> 'a
val is_some : 'a -> bool
val is_none : 'a -> bool
val some : 'a -> 'a t
val get_exn : 'a t -> 'a