/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/

import { Event } from '@sussudio/base/common/event.mjs';
import { IChannel, IServerChannel } from '@sussudio/base/parts/ipc/common/ipc.mjs';
import { IUpdateService, State } from './update.mjs';
export declare class UpdateChannel implements IServerChannel {
	private service;
	constructor(service: IUpdateService);
	listen(_: unknown, event: string): Event<any>;
	call(_: unknown, command: string, arg?: any): Promise<any>;
}
export declare class UpdateChannelClient implements IUpdateService {
	private readonly channel;
	readonly _serviceBrand: undefined;
	private readonly _onStateChange;
	readonly onStateChange: Event<State>;
	private _state;
	get state(): State;
	set state(state: State);
	constructor(channel: IChannel);
	checkForUpdates(explicit: boolean): Promise<void>;
	downloadUpdate(): Promise<void>;
	applyUpdate(): Promise<void>;
	quitAndInstall(): Promise<void>;
	isLatestVersion(): Promise<boolean>;
	_applySpecificUpdate(packagePath: string): Promise<void>;
}