import { Options as PoolOptions } from 'generic-pool';
import { ClientOpts as RedisOptions } from 'redis';
import RedisPool from './RedisConnectionPool';
import { Logger } from './helpers';
/**
 * RedisStore
 */
declare class RedisStore extends RedisPool {
    defaultTtlInS: number | undefined;
    deleteScriptPromise: Promise<any> | null;
    /**
     * @constructor
     * @param options
     * @param options.name         - Name your store
     * @param
     * @param
     * @param options.logger       - Inject your custom logger
     * @param options.defaultTtlInS - Number of seconds to store by default
     */
    constructor({ name, redisOptions, poolOptions, logger, defaultTtlInS }: {
        name?: string;
        redisOptions: RedisOptions;
        poolOptions?: PoolOptions;
        logger?: Logger;
        defaultTtlInS?: number;
    });
    /**
     * Return the defaultTtlInS
     * @returns defaultTtlInS
     */
    getDefaultTtlInS(): number | undefined;
    /**
     * Sets the defaultTtlInS
     * @param ttl
     * @returns defaultTtlInS
     */
    setDefaultTtlInS(ttl: number): number | undefined;
    /**
     * Unsets the defaultTtlInS
     * @param ttl
     * @returns true
     */
    unsetDefaultTtlInS(): boolean;
    /**
     * Returns 'PONG'
     *
     * @param str - string passed
     * @returns 'PONG'/string passed
     */
    ping(str?: string): Promise<string>;
    /**
     * Returns value or null when the key is missing - See [redis get]{@link https://redis.io/commands/get}
     * @async
     * @param key - key for the value stored
     * @returns value or null when the key is missing
     */
    get(key: string): Promise<any>;
    /**
     * Returns 'OK' if successful
     *
     * @param key - key for the value stored
     * @param value - value to stored
     * @param ttlInSeconds - time to live in seconds
     * @returns 'OK' if successful
     */
    set(key: string, value: any, ttlInSeconds?: number): Promise<any>;
    /**
     * Returns 'OK' if successful
     * @async
     * @param key          - key for the value stored
     * @param value        - value to stored
     * @param ttlInSeconds - time to live in seconds
     * @returns
     */
    getset(key: string, value: any, ttlInSeconds: number | undefined): Promise<any>;
    /**
     * Returns the number of keys that were removed - See [redis del]{@link https://redis.io/commands/del}
     *
     * @param keys - list of keys to delete
     * @returns The number of keys that were removed.
     */
    del(keys?: string[]): Promise<number>;
    /**
     * Returns 1 if the timeout was set/ 0 if key does not exist or the timeout could not be set - See [redis expire]{@link https://redis.io/commands/expire}
     *
     * @param   {string}  key          - key to set expire
     * @param   {number}  ttlInSeconds - time to live in seconds
     * @returns 1 if the timeout was set successfully; if not 0
     */
    expire(key: string, ttlInSeconds: number): Promise<number>;
    /**
     * Returns TTL in seconds, or a negative value in order to signal an error - See [redis ttl]{@link https://redis.io/commands/ttl}
     *
     * @param key - list of keys to delete
     * @returns TTL in seconds, or a negative value in order to signal an error
     */
    getTtl(key: string): Promise<number>;
    /**
     * Returns all keys matching pattern - See [redis keys]{@link https://redis.io/commands/keys}
     *
     * @param pattern - glob-style patterns/default '*'
     * @returns all keys matching pattern
     */
    keys(pattern?: string): Promise<string[]>;
    /**
     * Deletes all keys matching pattern
     *
     * @param pattern - glob-style patterns/default '*'
     * @returns The number of keys that were removed.
     */
    deleteAll(pattern?: string): Promise<number>;
    /**
     * Preloads delete all scripts into redis script cache (this script requires redis >=  4.0.0)
     * @returns sha1 hash of preloaded function
     * @private
     */
    _loadDeleteAllScript(): Promise<any> | null;
    /**
     * Preloads and execute delete all script
     * @async
     * @param pattern - glob-style patterns/default '*'
     * @returns The number of keys that were removed.
     * @private
     */
    _executeDeleteAll(pattern: string): Promise<number>;
}
export default RedisStore;