import * as i0 from "@angular/core";
export declare class NotificationGroupHeaderTitleDirective {
    /**
     * aria-level for the title
     * a numeric value from 1 to 6
     * default value is 3
     */
    ariaLevel: import("@angular/core").InputSignal<1 | 2 | 3 | 4 | 5 | 6>;
    /**
     * id for the notification group header title
     * if not set, a default value is provided
     */
    id: import("@angular/core").InputSignal<string>;
    static ɵfac: i0.ɵɵFactoryDeclaration<NotificationGroupHeaderTitleDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<NotificationGroupHeaderTitleDirective, "[fdNotificationGroupHeaderTitle], [fd-notification-group-header-title]", never, { "ariaLevel": { "alias": "ariaLevel"; "required": false; "isSignal": true; }; "id": { "alias": "id"; "required": false; "isSignal": true; }; }, {}, never, never, true, never>;
}
