export interface RedisClientType {
    isOpen: boolean;
    connect(): Promise<any>;
    quit(): Promise<void>;
    disconnect(): Promise<void>;
    get(key: string): Promise<string | null>;
    set(key: string, value: string, options?: {
        EX?: number;
    }): Promise<string | null>;
    del(...keys: string[]): Promise<number>;
    scanIterator(options: {
        MATCH: string;
        COUNT: number;
    }): AsyncIterable<string>;
    publish(channel: string, message: string): Promise<number>;
    duplicate(): any;
    on(event: string, listener: (...args: any[]) => void): this;
}
export declare function isRedisClient(client: any): client is RedisClientType;