import { IHttpClient } from "../dal/http/IHttpClient";
import { IUser } from "../model/IUser";
import { ICacheService } from "./cache/ICacheService";
export declare class PersonaService {
    protected graphClient: IHttpClient;
    updatePresence?: boolean;
    storageService: ICacheService;
    protected key: string;
    cacheExpiration: number;
    constructor(graphClient: IHttpClient, updatePresence?: boolean);
    getUser(id?: string, size?: "48x48" | "64x64" | "96x96" | "120x120" | "240x240"): Promise<IUser>;
}