/**
 * Severities of banners.
 * @public
 */
export declare const BannerSeverity: {
    readonly default: undefined;
    readonly error: "error";
    readonly warning: "warning";
    readonly information: "information";
};
export type BannerSeverity = (typeof BannerSeverity)[keyof typeof BannerSeverity];
/**
 * The type of the detail associated with the `toggle`
 * event on the banner.
 */
export interface BannerToggleEventDetail {
    newState: boolean;
    oldState: boolean;
}