import { DicomVolumeMetadata } from '../DicomVolumeLoader';
export default interface VolumeCache {
    getMetadata(key: string): Promise<DicomVolumeMetadata | undefined>;
    putMetadata(key: string, data: DicomVolumeMetadata): Promise<void>;
    getVolume(key: string): Promise<ArrayBuffer | undefined>;
    putVolume(key: string, data: ArrayBuffer): Promise<void>;
}
/**
 * Minimum "implementation" of VolumeCache that actually remembers nothing.
 */
export declare const nullVolumeCache: VolumeCache;