import { IContext } from '../IContext';
import { ResultValue } from './ResultValue';
/**
 * redirect url
 *
 * @export
 * @class RedirectResult
 * @extends {ResultValue}
 */
export declare class RedirectResult extends ResultValue {
    private url;
    private alt?;
    constructor(url: string, alt?: string);
    sendValue(ctx: IContext): Promise<void>;
    static ρAnn(): any;
}