import type { CalendarEvent, CalendarDatabase } from '../../types/index.js';
export declare function useCalendarDb(): any;
export declare function initializeCalendarDb(): Promise<void>;
export declare function saveEventToDb(event: CalendarEvent, userId?: string): Promise<CalendarDatabase>;
export declare function getEventsFromDb(userId?: string): Promise<CalendarDatabase[]>;
export declare function getEventFromDb(eventId: string, userId?: string): Promise<CalendarDatabase | null>;
export declare function deleteEventFromDb(eventId: string, userId?: string): Promise<boolean>;