You can search for identifiers within the package.
in-package search v0.2.0
type t = Spec_.t
type nt = Spec_.nt
type prod = Spec_.prod
type symbol = Spec_.symbol =
| NT of nt
| T of t
val compare_t : t -> t -> int
val compare_nt : nt -> nt -> int
val compare_prod : prod -> prod -> int