import { type CacheHandler } from "@nimpl/cache";
import { type LayerType } from "./lib/types";
export declare const createHelpers: (cacheHandler: CacheHandler) => {
    getKeys: (type: LayerType) => Promise<string[]>;
    getKeyDetails: (type: LayerType, key: string) => Promise<{
        key: string;
        metadata: null;
        value: null;
        size: number;
        status: null;
        error?: undefined;
    } | {
        key: string;
        metadata: {
            tags: any;
            timestamp: any;
            stale: any;
            revalidate: any;
            expire: any;
        };
        value: string;
        size: any;
        status: any;
        error?: undefined;
    } | {
        key: string;
        metadata: null;
        value: null;
        size: number;
        error: string;
        status: null;
    }>;
    updateTags: (type: LayerType, tags: string[], duration: number) => Promise<any>;
    updateKey: (type: LayerType, key: string, duration: number) => Promise<any>;
    deleteKey: (type: LayerType, key: string) => Promise<any>;
};