/// <reference types="node" />
import EventEmitter from 'events';
/**
 * Provide service level function to user
 */
declare class OkxV5Ws {
    #private;
    static PUBLIC_ENDPOINT: string;
    static PRIVATE_ENDPOINT: string;
    static DEMO_PUBLIC_ENDPOINT: string;
    static DEMO_PRIVATE_ENDPOINT: string;
    /**
     * constructor
     */
    constructor({ serverBaseUrl, profileConfig, options, messageHandler, }: {
        serverBaseUrl: string;
        profileConfig?: {
            apiKey: string;
            secretKey: string;
            passPhrase: string;
        };
        options?: {
            autoLogin?: boolean;
            logLoginMessage?: boolean;
            logSubscriptionMessage?: boolean;
            logChannelTopicMessage?: boolean;
            logTradeMessage?: boolean;
        };
        messageHandler?: (message: string) => any;
    });
    /**
     * Get the event emitter
     */
    get event(): EventEmitter;
    /**
     * start connecting to server
     */
    connect(): Promise<void>;
    /**
     * sending message payload to server
     *
     * @param payload
     */
    send(payload: object): Promise<void>;
    /**
     * subscribe channel topic
     *
     * @param subscriptionTopic
     * @returns
     */
    subscribeChannel(subscriptionTopic: SubscriptionTopic): Promise<SubscriptionResponse>;
    /**
     * unsubscribe channel topic
     *
     * @param subscriptionTopic
     * @returns
     */
    unsubscribeChannel(subscriptionTopic: SubscriptionTopic): Promise<UnsubscriptionResponse>;
    /**
     * Add channel topic message handler
     *
     * @param subscriptionTopic
     * @param channelMessageHandler
     */
    addChannelMessageHandler(subscriptionTopic: SubscriptionTopic, channelMessageHandler: ChannelMessageHandler): void;
    /**
     * Remove channel topic message handler
     *
     * @param subscriptionTopic
     * @param channelMessageHandler
     */
    removeChannelMessageHandler(subscriptionTopic: SubscriptionTopic, channelMessageHandler: ChannelMessageHandler): void;
    /**
     * Remove that channel topic's ALL message handler
     *
     * @param subscriptionTopic
     */
    removeAllChannelMessageHandler(subscriptionTopic: SubscriptionTopic): void;
    /**
     * Send trade op message
     *
     * @param payload
     * @returns
     */
    trade(payload: TradePayload): Promise<TradeResponse>;
    /**
     * close connection
     */
    close(): void;
}
export { OkxV5Ws };