Message.Content
type t =
| Text of string
| Multipart of Content_part.t list
include Sexplib0.Sexpable.S with type t := t
val t_of_sexp : Sexplib0__.Sexp.t -> t
val sexp_of_t : t -> Sexplib0__.Sexp.t
val text : string -> t
val multipart : Content_part.t list -> t