(.module:
  [lux #*
   [abstract
    [monad (#+ Monad)]]
   [control
    ["." try (#+ Try)]
    [concurrency
     ["." promise (#+ Promise)]]]])

(type: #export (Action a)
  (Promise (Try a)))

(def: #export monad
  (Monad Action)
  (:assume (try.with promise.monad)))