import { UseStore } from 'idb-keyval';
import { OcapCache, OcapCacheOptions } from './types';
/**
 * Cache decorator options (IndexedDB)
 */
export interface CacheOptions {
    /**
     * The version of the cache, default is 1
     */
    version?: number;
    /**
     * The maximum age of the cache, in milliseconds
     */
    maxAge: number;
    /**
     * The priority of the cache, the higher the priority, the lower the level
     */
    level: number;
}
export declare const serializeArgs: (...args: unknown[]) => string;
/**
 * Cache decorator (store in IndexedDB), use [money-clip](https://www.npmjs.com/package/money-clip) lib:
 *
 * Example:
  ```typescript
  @Cache('xmla-mdx:', { maxAge: 1000 * 60 * 60, level: 3 })
  async execute(modelName: string, mdx: string, language = '', options: { skip: boolean | void }): Promise<any> {
  }
  ```
 *
 * @param key
 * @param param1
 * @returns
 */
export declare function Cache(key: string, { maxAge, level }: CacheOptions): (_: unknown, __: string, descriptor: PropertyDescriptor) => void;
/**
 * Cache service, manage cache using [idb-keyval](https://www.npmjs.com/package/idb-keyval) lib:
 *
 * 1. clear all cache
 * 2. change cache level
 * 3. get cache keys
 * 4. clear cache by key
 */
export declare class DSCacheService implements OcapCache {
    options: {
        maxAge: number;
        level: number;
    };
    constructor(options?: CacheOptions);
    clearAllCache(): void;
    changeCacheLevel(level: number): void;
    getCacheLevel(): number;
    getCache({ key: cacheKey, level, version, maxAge }: OcapCacheOptions, { skip }?: {
        skip?: boolean | void;
    }): Promise<any>;
    setCache({ key, level, version, maxAge }: OcapCacheOptions, data: unknown): void;
    keys(customStore?: UseStore): Promise<string[]>;
    clear(key: IDBValidKey, customStore?: UseStore): Promise<void>;
}
export declare function isBrowser(): boolean;