You can search for identifiers within the package.
in-package search v0.2.0
quickterface
Io.Input
type (_, _) t =
| Text : (string option, string) t
| Integer : (unit, int) t
| Single_selection : ('a list * ('a -> string), 'a) t
| Multi_selection : ('a list * ('a -> string), 'a list) t