import { HoistModel, ToastSpec } from '@xh/hoist/core';
import { ToastModel } from './ToastModel';
/**
 *  Supports displaying a pop-up Toast.
 *  @internal
 */
export declare class ToastSourceModel extends HoistModel {
    xhImpl: boolean;
    toastModels: ToastModel[];
    constructor();
    show(config: ToastSpec | string): ToastModel;
    private addModel;
}