export declare function setAnnotationCache(entry: {
    dataUrl: string;
    mime: 'image/jpeg' | 'image/png';
}): void;
export declare function getAnnotationCache(): {
    dataUrl: string;
    mime: 'image/jpeg' | 'image/png';
} | null;
export declare function clearAnnotationCache(): void;
//# sourceMappingURL=annotation-cache.d.ts.map