module Async_or_error:sig
..end
type'a
t ='a Core.Std.Or_error.t Deferred.t
include Monad.S
val return : 'ok -> 'ok t
val fail : Core.Std.Error.t -> 'a t
val of_exn : exn -> 'a t
val failwith : string -> 'a t
val ok_unit : unit t
val never : unit -> 'a t
val try_with : ?name:string -> f:('arg -> 'a Deferred.t) -> 'arg -> 'a t
val try_with_join : ?name:string ->
f:('arg -> 'a t) -> 'arg -> 'a t
module List:Deferred_intf.Monad_sequence
with type 'a monad := 'a t
with type 'a t := 'a list