import "../../_dnt.polyfills.js";
import { PermanentMemo } from "../memo.js";
import { CacheBase } from "./base.js";
export declare class InMemoryCache extends CacheBase {
    memo: PermanentMemo<string, Uint8Array>;
    _getRaw(key: string, init: () => Promise<Uint8Array>): Promise<Uint8Array>;
    _has(key: string): Promise<boolean>;
}