import "../../_dnt.polyfills.js";
import { S3Bucket, S3BucketConfig } from "../../deps/s3.js";
import { CacheBase } from "./base.js";
export declare class S3Cache extends CacheBase {
    readonly prefix: string;
    bucket: S3Bucket;
    constructor(prefix: string, config: S3BucketConfig, signal: AbortSignal);
    _getRaw(key: string, init: () => Promise<Uint8Array>): Promise<Uint8Array>;
    _has(key: string): Promise<boolean>;
}