import { nothing } from 'lit';
import { BootstrapElement, type Variant } from '@bootstrap-wc/core';
/**
 * `<bs-alert>` — Bootstrap alert with optional dismiss button and fade-out transition.
 *
 * @slot - Alert content.
 * @slot heading - Optional heading block (rendered with `alert-heading`).
 * @fires bs-dismiss - Fired after the alert closes.
 */
export declare class BsAlert extends BootstrapElement {
    variant: Variant;
    dismissible: boolean;
    open: boolean;
    dismissLabel: string;
    private _closing;
    private _transition;
    private _onDismiss;
    /** Programmatic close (same effect as clicking the dismiss button). */
    close(): void;
    render(): import("lit-html").TemplateResult<1> | typeof nothing;
}
declare global {
    interface HTMLElementTagNameMap {
        'bs-alert': BsAlert;
    }
}
//# sourceMappingURL=alert.d.ts.map