import { HoistModel, TaskObserver } from '@xh/hoist/core';
/**
 * Supports username/password form-based login.
 * @internal
 */
export declare class LoginPanelModel extends HoistModel {
    username: string;
    password: string;
    warning: string;
    loginInProgress: boolean;
    loginTask: TaskObserver;
    get isValid(): boolean;
    constructor();
    submitAsync(): Promise<void>;
}