export declare const NOTIFICATION_VARIANTS: readonly ["info", "warning", "success", "error"];
export type NotificationVariant = (typeof NOTIFICATION_VARIANTS)[number];
/** Default per-variant icon name resolved by `mud-icon` when `iconName` prop is unset. */
export declare const NOTIFICATION_DEFAULT_ICONS: Record<NotificationVariant, string>;
/**
 * Variants that imply an assertive live region (urgent) per WCAG status/alert
 * pattern. Everything else uses the polite `status` role.
 */
export declare const NOTIFICATION_ASSERTIVE_VARIANTS: ReadonlySet<NotificationVariant>;