You can search for identifiers within the package.
in-package search v0.2.0
type t
type error = [
| `Msg of string
| `No_data of [ `raw ] Domain_name.t * Dns.Soa.t
| `No_domain of [ `raw ] Domain_name.t * Dns.Soa.t
]
val getrrecord : t -> 'r Dns.Rr_map.key -> _ Domain_name.t -> ('r, [> error ]) Stdlib.result Lwt.t