import { EventEmitterProxy } from 'events-constructor';
import { EContentUseLicense, TApiManagerEvents } from '../ApiManager';
import { TEventMap } from './events';
import { TCallRole, TCallRoleSpectator, TCallSessionDiagnostics, TCallSessionSnapshot } from './types';
export declare const DEFAULT_LICENSE = EContentUseLicense.VIDEO;
export declare class CallSessionState extends EventEmitterProxy<TEventMap> {
    private readonly roleManager;
    private license;
    private isDuplexSendingMediaMode;
    private currentSnapshot;
    private readonly subscriptions;
    private dedupedTotal;
    constructor();
    getSnapshot(): TCallSessionSnapshot;
    subscribe(listener: (snapshot: TCallSessionSnapshot) => void): () => void;
    subscribeRoleChanges(listener: (params: {
        previous: TCallRole;
        next: TCallRole;
    }) => void): () => void;
    hasSpectator(): boolean;
    setCallRoleParticipant(): void;
    setCallRoleSpectatorSynthetic(isAvailableSendingMedia?: boolean): void;
    setCallRoleSpectator(recvParams: TCallRoleSpectator['recvParams'], isAvailableSendingMedia?: boolean): void;
    reset(): void;
    subscribeToApiEvents(apiManager: TApiManagerEvents): void;
    stop(): void;
    getDiagnostics(): TCallSessionDiagnostics;
    private readonly notifySubscribers;
    private updateCurrentSnapshot;
    private readonly handleUseLicense;
    private readonly handleSyncMediaState;
}