import IORedis, { Cluster } from 'ioredis';
import { Apm } from '../../apm/apm';
import { CacheInterface } from '../cache.interface';
import { CompressionInterface } from '../compression.interface';
export declare class RedisCache implements CacheInterface {
    protected instance: string;
    protected apm?: Apm;
    protected compression: CompressionInterface;
    constructor(instance?: string, apm?: Apm);
    setCompression(compression: CompressionInterface): void;
    protected getWriteClient(): Promise<IORedis | Cluster>;
    protected getReadClient(): Promise<IORedis | Cluster>;
    get(cacheHash: string): Promise<any>;
    getMultiple(cacheHashes: string[]): Promise<any>;
    delete(cacheHash: string): Promise<any>;
    set(cacheHash: string, data: any, expireInSeconds?: number): Promise<void>;
    getCacheHash(cacheHash: string): string;
    clearAll(cachePrefix: string): Promise<void>;
    close(): Promise<void>;
    protected startSpan<T = any>(span: string, func: Function): Promise<T>;
}