import { IStorageProvider } from "./IStorageProvider";
import { IFilterInfo } from "../IFilter";
import { IAppserviceStorageProvider } from "./IAppserviceStorageProvider";
import Redis from 'ioredis';
/**
 * A storage provider that uses redis to store information.
 * @category Storage providers
 */
export declare class IoRedisStorageProvider implements IStorageProvider, IAppserviceStorageProvider {
    private client;
    private trackTransactionsInMemory;
    private maxInMemoryTransactions;
    private redisHasKey;
    private completedTransactions;
    /**
     * Creates a new simple file system storage provider.
     * @param {any} client The ioredis client.
     * @param {boolean} trackTransactionsInMemory True (default) to track all received appservice transactions rather than on disk.
     * @param {int} maxInMemoryTransactions The maximum number of transactions to hold in memory before rotating the oldest out. Defaults to 20.
     */
    constructor(client: Redis.Redis, trackTransactionsInMemory?: boolean, maxInMemoryTransactions?: number, redisHasKey?: string);
    setSyncToken(token: string | null): Promise<Redis.BooleanResponse>;
    getSyncToken(): Promise<string>;
    setFilter(filter: IFilterInfo): Promise<Redis.BooleanResponse>;
    getFilter(): IFilterInfo;
    addRegisteredUser(userId: string): any;
    isUserRegistered(userId: string): boolean;
    isTransactionCompleted(transactionId: string): boolean;
    setTransactionCompleted(transactionId: string): any;
    getKeyValueStore(): Promise<any>;
    readValue(key: string): Promise<string | null>;
    storeValue(key: string, value: string): Promise<Redis.BooleanResponse>;
}