Pop3 (elm_playground.Pop3)

val status : string -> (string, string) Stdlib.result option

val unstuff : string list -> string

val stuff : string -> string list

type client

val client : 
  user:string ->
  pass:string ->
  leave:bool ->
  known:string list ->
  ?limit:int ->
  unit ->
  client

val step : client -> string -> client * string list

val finished : client -> ((string * string) list, string) Stdlib.result option