/// module Rx { export interface ObservableStatic { /** * Invokes the asynchronous function, surfacing the result through an observable sequence. * @param {Function} functionAsync Asynchronous function which returns a Promise to run. * @returns {Observable} An observable sequence exposing the function's result value, or an exception. */ startAsync(functionAsync: () => IPromise): Observable; } } (function () { var o : Rx.Observable = Rx.Observable.startAsync(() => Rx.Observable.just('a').toPromise()); });