/*!
 * Copyright (c) Microsoft Corporation and contributors. All rights reserved.
 * Licensed under the MIT License.
 */
import { EventEmitter } from "events";
import { IDisposable, IEvent, IEventProvider } from "@fluidframework/common-definitions";
import { TypedEventEmitter } from "./typedEventEmitter";
/**
 * Base class used for forwarding events from a source EventEmitter.
 * This can be useful when all arbitrary listeners need to be removed,
 * but the primary source needs to stay intact.
 *
 * @deprecated Moved to the `@fluidframework-internal/client-utils` package.
 * @internal
 */
export declare class EventForwarder<TEvent = IEvent> extends TypedEventEmitter<TEvent> implements IDisposable {
    protected static isEmitterEvent(event: string): boolean;
    private static readonly newListenerEvent;
    private static readonly removeListenerEvent;
    /**
     * {@inheritDoc @fluidframework/common-definitions#IDisposable.disposed}
     */
    get disposed(): boolean;
    private isDisposed;
    private readonly forwardingEvents;
    constructor(source?: EventEmitter | IEventProvider<TEvent & IEvent>);
    /**
     * {@inheritDoc @fluidframework/common-definitions#IDisposable.dispose}
     */
    dispose(): void;
    protected forwardEvent(source: EventEmitter | IEventProvider<TEvent & IEvent>, ...events: string[]): void;
    protected unforwardEvent(source: EventEmitter | IEventProvider<TEvent & IEvent>, ...events: string[]): void;
}
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