import { IScheduler } from '../Scheduler';
import { Observable } from '../Observable';
import { Subscriber } from '../Subscriber';
import { TeardownLogic } from '../Subscription';
/**
 * We need this JSDoc comment for affecting ESDoc.
 * @extends {Ignored}
 * @hide true
 */
export declare class PairsObservable<T> extends Observable<Array<string | T>> {
    private obj;
    private scheduler;
    private keys;
    /**
     * Convert an object into an observable sequence of [key, value] pairs
     * using an optional IScheduler to enumerate the object.
     *
     * @example <caption>Converts a javascript object to an Observable</caption>
     * var obj = {
     *   foo: 42,
     *   bar: 56,
     *   baz: 78
     * };
     *
     * var source = Rx.Observable.pairs(obj);
     *
     * var subscription = source.subscribe(
     *   function (x) {
     *     console.log('Next: %s', x);
     *   },
     *   function (err) {
     *     console.log('Error: %s', err);
     *   },
     *   function () {
     *     console.log('Completed');
     *   });
     *
     * @param {Object} obj The object to inspect and turn into an
     * Observable sequence.
     * @param {Scheduler} [scheduler] An optional IScheduler to run the
     * enumeration of the input sequence on.
     * @returns {(Observable<Array<string | T>>)} An observable sequence of
     * [key, value] pairs from the object.
     */
    static create<T>(obj: Object, scheduler?: IScheduler): Observable<Array<string | T>>;
    constructor(obj: Object, scheduler?: IScheduler);
    /** @deprecated internal use only */ _subscribe(subscriber: Subscriber<Array<string | T>>): TeardownLogic;
}