import { BaseElement } from '../../..';
import { CountdownProps as Props } from './countdown.types';
export declare class SbCountdown extends BaseElement implements Props {
    get _containerElement(): HTMLLIElement | null;
    content: string;
    duration: number;
    redirectUrl: string;
    id: string;
    private seconds;
    private timerId;
    protected createRenderRoot(): this;
    connectedCallback(): void;
    disconnectedCallback(): void;
    private initializeCountdown;
    private startTimer;
    private completeCountdown;
    private clearTimer;
    private renderContent;
    render(): import('../../../../../node_modules/lit-html').TemplateResult<1>;
}