You can search for identifiers within the package.
in-package search v0.2.0
type t = [
| `Halt
| `Unknown
| `Error of string
| `Config of (string * string) list
| `Format of string
]
val read_input : IO.ic -> t IO.t
val to_sexp : t -> Csexp.t
val output : IO.oc -> t -> unit IO.t