import { ChatReadItem } from './types';
export type ChatEngineResponse = {
    dataObjects: ChatReadItem[];
    maxObjectId: number;
};
export type VideoChatMode = 'enabled' | 'disabled' | 'requested';
export declare class Client {
    private readonly endpoint;
    private readonly protocolVersion;
    private readonly timeout;
    private penStatusTimer;
    private penStatusJustSent;
    constructor(endpoint: string);
    chatJoin(payload: {
        uid: string;
        customerName: string;
        instance: string;
        videoChatMode: VideoChatMode;
        invitationUid: string;
    }): Promise<void>;
    chatRequest(payload: {
        uid: string;
        customerName?: string;
        customerEmailAddress: string;
        visitorQuestion: string;
        instance: string;
        queueMessageInterval: number;
        entrance: string;
        errand: string;
        videoChatMode: VideoChatMode;
        customData: Record<string, any>;
        authOption: 'required' | 'optional' | 'disabled';
        authToken?: string;
    }): Promise<void>;
    videoPrepared(payload: {
        uid: string;
        instance: string;
        result: string;
    }): Promise<void>;
    chatRead(payload: {
        uid: string;
        instance: string;
        entrance: string;
        maxObjectId: number;
    }): Promise<ChatEngineResponse>;
    sendPenStatusOn(payload: {
        uid: string;
        instance: string;
        key: string;
    }): void;
    sendPenStatusOff(payload: {
        uid: string;
        instance: string;
    }): void;
    chatWrite(payload: {
        uid: string;
        instance: string;
        clockstamp: string;
        message: string;
    }): Promise<ChatEngineResponse>;
    chatAuthentication(payload: {
        uid: string;
        instance: string;
        authToken: string;
    }): Promise<void>;
    chatQuit(payload: {
        uid: string;
        instance: string;
    }): Promise<void>;
    chatCheckSession(payload: {
        uid: string;
        instance: string;
    }): Promise<ChatEngineResponse | null>;
    chatEmailSession(payload: {
        uid: string;
        instance: string;
        emailAddress: string;
    }): Promise<ChatEngineResponse>;
    isOpenEntrance(payload: {
        uid: string;
        instance: string;
        entrance: string;
    }): Promise<{
        open: boolean;
        result: string;
    }>;
    private sendRequest;
    static removeTrailingSlashes(text: string): string;
}