/*!
 * Copyright (c) Microsoft Corporation and contributors. All rights reserved.
 * Licensed under the MIT License.
 */
import * as Redis from "ioredis";
/**
 * Represents an interface for managing creation,
 * and authentication with a Redis client.
 */
export interface IRedisClientConnectionManager {
    /**
     * @returns The Redis client.
     */
    getRedisClient(): Redis.default | Redis.Cluster;
    /**
     * Adds an error handler to the Redis client, which will print telemetry when an error is encountered.
     *
     * @param lumberProperties - Lumber properties to be added to the telemetry.
     * @param errorMessage - The error message to be printed when an error is encountered.
     * @param additionalLoggingFunctionality - A lambda function that adds additional error handling and/or logging behavior.
     * If this lambda returns true it will completely override the existing error handling/logging, otherwise it will do both.
     */
    addErrorHandler(lumberProperties?: Record<string, any>, errorMessage?: string, additionalLoggingFunctionality?: (error: Error) => boolean): void;
}
export declare class RedisClientConnectionManager implements IRedisClientConnectionManager {
    private readonly enableVerboseErrorLogging;
    private client;
    private readonly redisOptions;
    private readonly enableClustering;
    private readonly slotsRefreshTimeout;
    private readonly retryDelays;
    constructor(redisOptions?: Partial<Redis.RedisOptions & Redis.ClusterOptions>, redisConfig?: any, enableClustering?: boolean, slotsRefreshTimeout?: number, retryDelays?: {
        retryDelayOnFailover: number;
        retryDelayOnClusterDown: number;
        retryDelayOnTryAgain: number;
        retryDelayOnMoved: number;
        maxRedirections?: number;
    }, enableVerboseErrorLogging?: boolean);
    private authenticateAndCreateRedisClient;
    getRedisClient(): Redis.default | Redis.Cluster;
    private redactArg;
    addErrorHandler(lumberProperties?: Record<string, any>, errorMessage?: string, additionalLoggingFunctionality?: (error: Error) => boolean): void;
}
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