import { Observer } from '../Observer';
import { Updater } from './Updater';
export declare class OnAllCallObserverUpdater implements Updater {
    private observer;
    readonly name = "OnAllCallObserverUpdater";
    readonly description = "Call Observer's update() method when all of the ObservedCalls are updated";
    private readonly _updatedCalls;
    closed: boolean;
    constructor(observer: Observer);
    close(): void;
    private _onNewObservedCall;
    private _onObservedCallUpdated;
    private _updateIfEveryCallUpdated;
}
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