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node_modules/rxjs/observable/EmptyObservable.d.ts

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+import { IScheduler } from '../Scheduler';
+import { Subscriber } from '../Subscriber';
+import { Observable } from '../Observable';
+import { TeardownLogic } from '../Subscription';
+export interface DispatchArg<T> {
+    subscriber: Subscriber<T>;
+}
+/**
+ * We need this JSDoc comment for affecting ESDoc.
+ * @extends {Ignored}
+ * @hide true
+ */
+export declare class EmptyObservable<T> extends Observable<T> {
+    private scheduler;
+    /**
+     * Creates an Observable that emits no items to the Observer and immediately
+     * emits a complete notification.
+     *
+     * <span class="informal">Just emits 'complete', and nothing else.
+     * </span>
+     *
+     * <img src="./img/empty.png" width="100%">
+     *
+     * This static operator is useful for creating a simple Observable that only
+     * emits the complete notification. It can be used for composing with other
+     * Observables, such as in a {@link mergeMap}.
+     *
+     * @example <caption>Emit the number 7, then complete.</caption>
+     * var result = Rx.Observable.empty().startWith(7);
+     * result.subscribe(x => console.log(x));
+     *
+     * @example <caption>Map and flatten only odd numbers to the sequence 'a', 'b', 'c'</caption>
+     * var interval = Rx.Observable.interval(1000);
+     * var result = interval.mergeMap(x =>
+     *   x % 2 === 1 ? Rx.Observable.of('a', 'b', 'c') : Rx.Observable.empty()
+     * );
+     * result.subscribe(x => console.log(x));
+     *
+     * // Results in the following to the console:
+     * // x is equal to the count on the interval eg(0,1,2,3,...)
+     * // x will occur every 1000ms
+     * // if x % 2 is equal to 1 print abc
+     * // if x % 2 is not equal to 1 nothing will be output
+     *
+     * @see {@link create}
+     * @see {@link never}
+     * @see {@link of}
+     * @see {@link throw}
+     *
+     * @param {Scheduler} [scheduler] A {@link IScheduler} to use for scheduling
+     * the emission of the complete notification.
+     * @return {Observable} An "empty" Observable: emits only the complete
+     * notification.
+     * @static true
+     * @name empty
+     * @owner Observable
+     */
+    static create<T>(scheduler?: IScheduler): Observable<T>;
+    static dispatch<T>(arg: DispatchArg<T>): void;
+    constructor(scheduler?: IScheduler);
+    /** @deprecated internal use only */ _subscribe(subscriber: Subscriber<T>): TeardownLogic;
+}