control.async.d.ts

declare module 'control.async' {
  import Task = require('data.task');

  function parallel<E1, A>(
    tasks: [Task<E1, A>]
  ): Task<E1, [A]>;
  function parallel<E1, E2, A, B>(
    tasks: [Task<E1, A>, Task<E2, B>]
  ): Task<E1 | E2, [A, B]>;
  function parallel<E1, E2, E3, A, B, C>(
    tasks: [Task<E1, A>, Task<E2, B>, Task<E3, C>]
  ): Task<E1 | E2 | E3, [A, B, C]>;

  type AsyncInstance = {
    parallel: typeof parallel
  };

  function Async(task: typeof Task): AsyncInstance;
  export = Async;
}