include sig ... end
val bin_t : t Bin_prot.Type_class.t
val bin_read_t : t Bin_prot.Read.reader
val __bin_read_t__ : (int ‑> t) Bin_prot.Read.reader
val bin_reader_t : t Bin_prot.Type_class.reader
val bin_size_t : t Bin_prot.Size.sizer
val bin_write_t : t Bin_prot.Write.writer
val bin_writer_t : t Bin_prot.Type_class.writer
val bin_shape_t : Bin_prot.Shape.t
val create : ?from:[ `Keep | `Change_to of Email_address.t ] ‑> ?to_:[ `Keep | `Change_to of Email_address.t list ] ‑> ?cc:[ `Keep | `Change_to of Email_address.t list ] ‑> ?subject:[ `Keep | `Prepend of string ] ‑> Email.Simple.Content.t ‑> t