import { LitElement, CSSResult } from '@rxdi/lit-html';
/**
 * @customElement rx-alert
 */
export declare class AlertComponent extends LitElement {
    palette: 'primary' | 'success' | 'warning' | 'danger' | 'default';
    paletteStyle: CSSResult;
    transition: boolean;
    onClose(): void;
    OnUpdateFirst(): void;
    private setPaletteStyle;
}