You can search for identifiers within the package.
in-package search v0.2.0
type !'address t =
| Attempting_to_connect
| Obtained_address of 'address
| Failed_to_connect of Core.Error.t
| Connected of conn
| Disconnected
val sexp_of_t : ('address -> Sexplib0.Sexp.t) -> 'address t -> Sexplib0.Sexp.t
val log_level : 'a t -> [ `Debug | `Error | `Info ]