Module Async_smtp__Message.On_disk.Metadata

Spoolable.Metadata.t should be smallish since it is read and written more frequently than Spoolable.Data.t.

type t = t

of_string and to_string are used to persist and read t on disk.

include Core.Stringable.S with type t := t
type t
val of_string : string ‑> t
val to_string : t ‑> string