Module Expert

val content : whitespace:Email_message.Headers.Whitespace.t -> extra_headers:(Email_message.Headers.Name.t * Email_message.Headers.Value.t) list -> encoding:Email_message.Octet_stream.Encoding.known -> string -> t

val multipart : whitespace:Email_message.Headers.Whitespace.t -> content_type:Mimetype.t -> extra_headers:(Email_message.Headers.Name.t * Email_message.Headers.Value.t) list -> t list -> t