open Async include module type of Message_t val add_reaction : t -> Emoji.t -> unit Deferred.Or_error.t val remove_reaction : t -> Emoji.t -> User_t.t -> unit Deferred.Or_error.t val clear_reactions : t -> unit Deferred.Or_error.t val delete : t -> unit Deferred.Or_error.t val pin : t -> unit Deferred.Or_error.t val unpin : t -> unit Deferred.Or_error.t val reply : t -> string -> t Deferred.Or_error.t val set_content : t -> string -> t Deferred.Or_error.t val set_embed : t -> Embed.t -> t Deferred.Or_error.t