import type { FolderName, OpfsKey } from './types.js';
export interface RangeCacheEntryMeta {
    fullSize: number;
    type?: string;
    etag?: string;
    lastModified?: string;
}
export interface RangeCacheBlobHit {
    blob: Blob;
}
export interface RangeCacheLimits {
    maxSizeBytes: number;
    maxEntries: number;
}
export declare class RangeCacheImpl {
    private readonly cache;
    private readonly keysByOpfsKey;
    constructor(limits: RangeCacheLimits);
    get(opfsKey: OpfsKey, start: number, end: number): RangeCacheBlobHit | undefined;
    set(opfsKey: OpfsKey, start: number, end: number, blob: Blob): void;
    invalidateForKey(opfsKey: OpfsKey): void;
    invalidateAll(): void;
}
export declare function getOrCreateRangeCache(folderName: FolderName, limits: RangeCacheLimits): RangeCacheImpl;
export declare function getRangeCache(folderName: FolderName): RangeCacheImpl | null;