module Base : sig ... end
type t
= Base.t Core.Blang.t
include sig ... end
val sexp_of_t : t ‑> Base.Sexp.t
val matches : t ‑> Email_message.Email.t ‑> bool
val matches' : t ‑> Email_message__.Headers.t ‑> bool
val example : t
module Stable : sig ... end