import { Options as PoolOptions } from 'generic-pool';
import { ClientOpts as RedisOptions } from 'redis';
import RedisStore from './RedisStore';
import { Logger } from './helpers';
import { RedisPoolStatus } from './RedisConnectionPool';
/**
 * @param options
 * @param options.name         - Name your cache store
 * @param options.redisOptions - opts from [node_redis#options-object-properties]{@link https://github.com/NodeRedis/node_redis#options-object-properties}
 * @param options.poolOptions  - opts from [node-pool#createpool]{@link https://github.com/coopernurse/node-pool#createpool}
 * @param options.logger       - Inject your custom logger
 * @param options.defaultTtlInS - Number of seconds to store by default
 */
export declare const init: (options: {
    /** Name your cache store */
    name?: string | undefined;
    /** opts from [node_redis#options-object-properties]{@link https://github.com/NodeRedis/node_redis#options-object-properties} */
    redisOptions: RedisOptions;
    /** opts from [node-pool#createpool]{@link https://github.com/coopernurse/node-pool#createpool} */
    poolOptions?: PoolOptions | undefined;
    /** Inject your custom logger */
    logger?: Logger | undefined;
    /** Number of seconds to store by default */
    defaultTtlInS?: number | undefined;
}) => void;
/**
 * Returns cache store
 */
export declare const getStore: () => RedisStore;
/**
 * Returns name of this pool
 */
export declare const getName: () => string;
/**
 * Returns redisOptions of this pool
 */
export declare const getRedisOptions: () => RedisOptions;
/**
 * Returns poolOptions of this pool
 */
export declare const getPoolOptions: () => PoolOptions;
/**
 * Returns pool status and stats
 */
export declare const getStatus: () => RedisPoolStatus;
/**
 * Return the defaultTtlInS
 */
export declare const getDefaultTtlInS: () => number | undefined;
/**
 * Sets the defaultTtlInS
 * @param ttl - new default ttl in seconds
 */
export declare const setDefaultTtlInS: (ttl: number) => number | undefined;
/**
 * Unsets the defaultTtlInS
 */
export declare const unsetDefaultTtlInS: () => boolean;
/**
 * 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
 */
export declare const set: (key: string, value: any, ttlInSeconds?: number | undefined) => Promise<string>;
/**
 * 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
 */
export declare const getset: (key: string, value: any, ttlInSeconds?: number | undefined) => Promise<any>;
/**
 * Returns value or null when the key is missing
 * @param key - key for the value stored
 * @returns value or null when the key is missing
 */
export declare const get: (key: string) => Promise<any>;
/**
 * Returns all keys matching pattern
 * @param pattern - glob-style patterns/default '*'
 * @returns all keys matching pattern
 */
export declare const keys: (pattern?: string) => Promise<string[]>;
/**
 * Delete keys
 * @param keys - keys for the value stored
 * @returns The number of keys that were removed.
 */
export declare const del: (_keys?: string[]) => Promise<number>;
/**
 * Deletes all keys matching pattern
 * @param pattern - glob-style patterns/default '*'
 * @returns The number of keys that were removed.
 */
export declare const deleteAll: (pattern?: string) => Promise<number>;
/**
 * Wraps promise to set its value if not exists.
 * @async
 * @param key     - key for the value stored
 * @param fn      - function to call if not cache found
 * @param opts    - options for wrap
 * @param opts.ttlInSeconds - time to live in seconds
 * @returns 'OK' if successful
 */
export declare const wrap: (key: string, fn: Function, opts?: {
    ttlInSeconds?: number;
}) => Promise<any>;