import type { Annotation } from "./types";
declare class AnnotationDatabase {
    private dbPromise;
    private getDB;
    saveAnnotation(annotation: Annotation): Promise<void>;
    getAnnotation(id: string): Promise<Annotation | undefined>;
    getAnnotationsByPage(pageUrl: string): Promise<Annotation[]>;
    getAllAnnotations(): Promise<Annotation[]>;
    deleteAnnotation(id: string): Promise<void>;
    clearAll(): Promise<void>;
}
export declare const db: AnnotationDatabase;
export {};