You can search for identifiers within the package.
in-package search v0.2.0
val first : 'a list -> 'a
val second : 'a list -> 'a
val third : 'a list -> 'a
val fourth : 'a list -> 'a
val fifth : 'a list -> 'a
val sixth : 'a list -> 'a
val seventh : 'a list -> 'a
val eighth : 'a list -> 'a
val ninth : 'a list -> 'a
val rest : 'a list -> 'a list