Module Email_message__Selector.Base

type t = [
| `exists_header of string * Re2.t
| `all_headers of string * Re2.t
]
val sexp_of_t : t -> Ppx_sexp_conv_lib.Sexp.t
val matches : t -> Email_message.Email.t -> bool
val matches' : t -> Email_message__.Headers.t -> bool
val examples : t list