import { IConversation } from '../conversation-util/IConversation';
import { ILpClient } from '../lp-client/LpClient';
import { ISDEsResponse } from './ISDEResponse';
import { ISDEsRequest } from './ISDEsRequest';
import { ISDEUtil } from './ISDEUtil';
export declare class SDEUtil implements ISDEUtil {
    private lpClient;
    private brandId;
    constructor(lpClient: ILpClient);
    getSDEsFromConv(conversation: IConversation): {
        sdes: ISDEsResponse;
        unAuthSdes: ISDEsResponse;
    };
    addSDEs(sdes: ISDEsRequest, visitorId: string, sessionId: string): Promise<void>;
    /**
     * Will sort the events of the SDES by the server-timestamp. The last event is the most recent one.
     * @param sdes the sdes which should be sorted.
     */
    private sortSDEs;
}