import * as Contracts from "../contracts";
/**
 * @export
 * @class Updater
 */
export declare class Updater implements Contracts.Updater {
    /**
     * @private
     * @type {Application}
     * @memberof Updater
     */
    private readonly app;
    /**
     * @private
     * @type {Config}
     * @memberof Updater
     */
    private readonly config;
    /**
     * @private
     * @type {PackageJson}
     * @memberof Updater
     */
    private readonly pkg;
    /**
     * @private
     * @type {Installer}
     * @memberof Updater
     */
    private readonly installer;
    /**
     * @private
     * @type {ProcessManager}
     * @memberof Updater
     */
    private readonly processManager;
    /**
     * @private
     * @type {*}
     * @memberof Updater
     */
    private updateCheckInterval;
    /**
     * @private
     * @type {(string | undefined)}
     * @memberof Updater
     */
    private latestVersion;
    /**
     * @returns {Promise<boolean>}
     * @memberof Updater
     */
    check(): Promise<boolean>;
    /**
     * @param {boolean} [updateProcessManager=false]
     * @param {boolean} [force=false]
     * @returns {Promise<boolean>}
     * @memberof Updater
     */
    update(updateProcessManager?: boolean, force?: boolean): Promise<boolean>;
    /**
     * @private
     * @returns {(Promise<string | undefined>)}
     * @memberof Updater
     */
    getLatestVersion(): Promise<string | undefined>;
    private get packageName();
    private get packageVersion();
    private get packageChannel();
}
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