import MessagingSessionObserver from '../messagingsessionobserver/MessagingSessionObserver';
export default interface MessagingSession {
    /**
     * Start a messaging session.
     */
    start(): void;
    /**
     * Stop a messaging session.
     */
    stop(): void;
    /**
     * Add an observer.
     */
    addObserver(observer: MessagingSessionObserver): void;
    /**
     * Remove an observer.
     */
    removeObserver(observer: MessagingSessionObserver): void;
    /**
     * Iterates through each observer, so that their notification functions may
     * be called.
     */
    forEachObserver(observerFunc: (observer: MessagingSessionObserver) => void): void;
}