You can search for identifiers within the package.
in-package search v0.2.0
encore
Impl.Option
val (<$>) : ('a, 'b) Bijection.topt -> 'a t -> 'b t
val ($>) : unit t -> (unit, 'a) Bijection.topt -> 'a t
val (<$) : 'a t -> (unit, 'a) Bijection.topt -> unit t