You can search for identifiers within the package.
in-package search v0.2.0
dkim
Dkim.Encoder
val algorithm : (algorithm * hash_algorithm) Prettym.t
val domain : [ `raw ] Domain_name.t Prettym.t
val selector : [ `raw ] Domain_name.t Prettym.t
val timestamp : int64 Prettym.t
val expiration : int64 Prettym.t
val length : int Prettym.t
val signature : string Prettym.t
val dkim_signature : (string * hash_value) t Prettym.t
val as_field : (string * hash_value) t Prettym.t