import { Driver } from './Driver';
import { CacheMeta } from '../types/CacheMeta';
declare type FileDriverOptions = {
    cachePath: string;
    safe?: boolean;
};
declare type FileMeta = CacheMeta & {
    fileName: string;
};
export declare class FileDriver implements Driver {
    private opts;
    private index;
    private indexMut;
    private indexLoc;
    constructor(opts: FileDriverOptions);
    private getLoc;
    private readFile;
    private writeFile;
    private writeIndex;
    init(): Promise<void>;
    get<T>(key: string): Promise<T | null>;
    getMeta(key: string): Promise<FileMeta | undefined>;
    set<T>(key: string, obj: T, meta?: CacheMeta): Promise<boolean>;
    has(key: string): Promise<boolean>;
    clear(): Promise<boolean>;
    remove(key: string): Promise<boolean>;
    items(): AsyncGenerator<[string, any], void, unknown>;
}
export {};