You can search for identifiers within the package.
in-package search v0.2.0
type t =
| HUP
| USR1
| USR2
type error =
| Invalid_signal_string of string
| Invalid_signal_int of int
| Invalid_signal_sys of int
exception Exception of error
val of_string : string -> t
val to_sys : t -> int
val of_sys : int -> t
val to_int : t -> int
val of_int : int -> t
val max_int : int