import { Subject } from 'rxjs';
export declare type DbChangeMetadata = {
    db: string;
    store: string;
    key?: IDBValidKey;
};
/**
 * Emits an event whenever a key changes. The key change can be triggered by a creation or deletion event.
 *
 * @eventProperty { db: string; store: string; key?: IDBValidKey }
 */
export declare const KEY_CHANGED: Subject<DbChangeMetadata>;
/**
 * Emits an event whenever a value changes. The value change can be triggered by a creation, update, deletion event.
 *
 * @eventProperty { db: string; store: string; key?: IDBValidKey }
 */
export declare const VALUE_CHANGED: Subject<DbChangeMetadata>;
/**
 * Emits a new value whenever a database gets deleted. The emitted value is the database's name.
 */
export declare const DATABASE_DELETE_EVENTS: Subject<string>;