import { TemplateResult } from 'lit';
import { BahtElement } from '../base.js';
/**
 * Centered failure placeholder with an optional retry action.
 * Emits `baht-retry` when the retry button is clicked.
 *
 *   <baht-error-state heading="Backend unavailable"
 *                     message="The API is not responding."
 *                     retry-label="Retry"></baht-error-state>
 */
export declare class BahtErrorState extends BahtElement {
    /** Illustration name (`error` by default), or any emoji / short text. Empty string hides it. */
    icon: string;
    heading: string;
    message: string;
    /** Renders a retry button with this label; omit for no action. */
    retryLabel: string;
    private readonly onRetry;
    protected render(): TemplateResult;
}