import { OnModuleDestroy, OnModuleInit, Type } from '@nestjs/common';
import { ConfigService } from '@nestjs/config';
import { Cache } from 'cache-manager';
import { Action } from '../enums';
import { CacheModuleOptions } from './cache.module';
export declare class CacheService implements OnModuleInit, OnModuleDestroy {
    private cacheManager;
    private cacheModuleOptions;
    private configService;
    private readonly logger;
    private readonly storeType;
    private readonly cachePrefix;
    private readonly ttl;
    private readonly maxItems;
    private readonly evictionStrategy;
    private readonly evictionDeferred;
    private readonly changeStrategy;
    private readonly changeDeferred;
    private readonly filesystemRootDir;
    private readonly metadataPath;
    private readonly cleanStart;
    private readonly enabled;
    private keysMeta;
    constructor(cacheManager: Cache, cacheModuleOptions: CacheModuleOptions, configService: ConfigService);
    onModuleInit(): Promise<void>;
    onModuleDestroy(): Promise<void>;
    getCacheManager(): Cache;
    isEnabled(): boolean;
    prefixedKey(key: string): string;
    get<T>(key: string, type?: Type): Promise<T | null>;
    set(key: string, value: any, ttl?: number | any): Promise<void>;
    del(key: string): Promise<void>;
    loadKeysMeta(): Promise<void>;
    storeKeysMeta(): Promise<void>;
    expire(pattern?: string): Promise<void>;
    evict(): Promise<void>;
    expireOnChange(resource: string, action: Action): Promise<void>;
    keys(pattern?: string): Promise<Set<string>>;
    private redisKeys;
    private filesystemKeys;
    private memoryKeys;
    private removeEmptyDirs;
    private evictExcessEntries;
    private sortLRU;
    private sortLFU;
    private sortFIFO;
}