export declare class AuthenticationHelper {
    /**
     * Initializes the global cookie and place id, and tries to validate:
     * 1. The validity of the cookie.
     * 2. The ownership of the user to the place.
     * @param {string} cookie The cookie to use, must include the warning text.
     * @param {number} placeID The place ID to use, the user that is dependent on the cookie must have edit permissions for this place.
     */
    static InitAuthenticatedUser(cookie: string, placeID: number): Promise<void>;
}