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